City Population Research Articles

The Role of Blood Group in Cancer Risk: Correlations with Site, Age, and Body Mass Index

Background: Cancer is a complicated group of diseases in which cells grow and divide without being controlled. It is still one of the main reasons of death in the world, which presents major public health issues. Blood group links to cancer risk have been getting more and more attention over the past few years, among other things being studied. Aim of the study: This study aimed to assess the relation between ABO blood groups and the occurrence of different cancer types among the population of Kirkuk city. Patients and methods: This cross-sectional study was carried out in Kirkuk city from the period 15th October 2023 to 15th May 2024 on cancer patients of Kirkuk's Oncology and Hematology Centre. Data was collected from medical records and patient interviews to examine demographic characteristics, lifestyle factors, medical history, and potential exposures. The study included 398 patients diagnosed with cancer within a specified time frame, selected from medical records of healthcare facilities in the target area.. Blood samples were collected from each participant in the study for determination of blood group and Rh. Results: The study reveals that breast cancer is the most prevalent cancer, accounting for 45.98% of all cases. The study presents the distribution of cancer patients according to their blood groups, with O positive and A positive blood types accounting for the highest percentage at 33.67%. Other blood types such as B positive, AB positive, O negative, B negative, AB negative, and A negative are represented in smaller percentages ranging from 1.26% to 20.60%. The duration of cancer is examined in relation to blood groups, providing insights into mean durations across different ABO blood types and Rh factors. Blood type A exhibits the longest mean duration at 1.71 years, followed closely by blood type B at 1.74 years, while blood type O presents a slightly shorter mean duration at 1.52 years. In the current study, blood group A is predominantly seen in brain cancer for males (100%), with a considerable presence in digestive system cancers, split nearly evenly between males (41.94%) and females (58.06%). Blood group B appears infrequently but is represented in the digestive system and female reproductive cancers, demonstrating a minor presence compared to other groups. Skin cancer shows a potential link between blood group distribution and family history of the disease, suggesting a genetic predisposition or a significant association worth further investigation.

Optimalisasi Pelaksanaan Program KALIMASADA dalam Pendampingan Layanan Administrasi Kependudukan di Kelurahan Nginden Jangkungan Surabaya

This article will discuss the role of students in carrying out assistance in population administration services through optimizing the implementation of the KALIMASADA Program in the Surabaya City Population and Civil Registration Service, especially in the Nginden Jangkungan Subdistrict area, Surabaya. This program aims to increase public literacy regarding the importance of population administration, provide direct assistance to the community and optimize Population Administration services in Nginden Jangkungan Village. The method used in the population administration services assistance program is a participatory approach with descriptive methods. A participatory approach is an approach that formulates regional or village development needs that prioritize the community. Students carry out field trip surveys directly to the community. The results of this mentoring program show that the role of students in assisting with population administration services really helps the community in fulfilling population administration documents. This assistance activity can help the community understand the importance of population administration documents and fulfill population administration documents.

Characterizing the livingness of geographic space across scales using global nighttime light data

The hierarchical structure of geographic or urban space can be well-characterized by the concept of living structure, a term coined by Christopher Alexander. All spaces, regardless of their size, possess certain degrees of livingness that can be mathematically quantified. While previous studies have successfully quantified the livingness of small spaces such as images or artworks, the livingness of geographic space has not yet been characterized in a recursive manner. Zipf’s law has been observed in urban systems and intra-urban structures. However, whether Zipf’s law is applicable to the hierarchical substructures of geographic space has rarely been investigated. In this study, we recursively extract the substructures of geographic space using global nighttime light imagery. We quantify the livingness of global cities considering the number of substructures (S) and their inherent hierarchy (H). We further investigate the scaling properties of the extracted substructures across scales and the relationships between livingness and population for global cities. The results demonstrate that all substructures of global cities form a living structure that conforms to Zipf’s law. The degree of livingness better captures population distribution than nighttime light intensity values for the global cities. This study contributes in three aspects: First, it considers global cities as a whole to quantify spatial livingness. Second, it applies the concept of livingness to cities to better capture the spatial structure of the population using nighttime light data. Third, it introduces a novel method to recursively extract substructures from nighttime images, offering a valuable tool to investigate urban structures across multiple spatial scales.

Ambient air quality and risk of circulatory diseases for population of a large city in the European north of Russia

Cardiovascular diseases are the most frequent causes of premature mortality associated with ambient air quality. In the Arkhangelsk region, population mortality caused by diseases of the circulatory system is higher than the national average. The aim of this study was to assess ambient air quality in Arkhangelsk and associated health harm in adult population. The study relied on using data of ambient air monitoring in Arkhangelsk collected over 2011–2022. We analyzed average annual levels of 23 pollutants and primary incidence of diseases of the circulatory system (CVD) and calculated hazard quotients under chronic inhalation exposure (HQ), hazard index (HI) for the cardiovascular system, and the number of attributable deaths associated with exposure to PM10 and PM2.5. Over the analyzed period, the average long-term concentrations of most pollutants met hygienic standards. Average levels of formaldehyde, chromium, copper and benzene were found to exceed the MPL by 1.5–2.3 times. Hazard coefficients for formaldehyde (HQ = 2.3), copper (HQ = 1.8) and PM2.5 (HQ = 1.7) were established to be above their permissible value. The risk of developing general toxic effects is determined to be high (HI = 6.6) for the cardiovascular system. The main contribution to the risk level is made by copper and PM2.5. Attributable outcomes of primary cardiovascular incidence among the adult population of Arkhangelsk associated with exposure to PM10 and PM2.5 equaled 10.7 and 2.9 ‰ cases per year. The greatest harm under exposure to PM2.5 is due to the development of coronary artery disease and amounts to 1.9 ‰ cases per year.

Toddlers Family Assistance Model: As An Effort To Stunting Prevention Education In Kuantan Singingi District, Indonesia

This research aims to find out what the toddlers family assistance model is as an effort to stunting prevention education in Kuantan Singingi Regency. The method used is descriptive qualitative. The results showed that family assistance starts with careful planning and coordination with various related parties, implementing and preparing target data for toddlers, collecting data on families of toddlers at risk of stunting, sorting data on babies at risk of stunting until the evaluation carries out recording and reporting to the top level. Family assistance model starts from the Stunting Reduction Acceleration Team (TPPS) at the central level, namely the BKKBN, down to the provincial level, namely representatives of the provincial BKKBN, then at the Regency/City level, namely the Regional Apparatus Organization (OPD) in the field of Regency or City Population Control, at the sub-district level, namely the Family Planning Counseling Center ( KB), village or sub-district level and the Family Assistance Team (TPK) as field agents directly provide assistance to toddlers and toddlers at risk of stunting, in addition to facilitating referrals and social assistance. Based on data, the stunting rate is decreasing from 2019-2023 in Kuantan Singingi Regency.

Assessing and anticipating environmental challenges in Lahore, Pakistan: future implications of air pollution on sustainable development and environmental governance.

Urban environment and air quality are changing primarily due to land use land cover (LULC) changes, economic activity, and urbanization. Air pollution has been increasingly acknowledged as a major issue for cities due to its extensive effects on health and well-being. As the second most populous city in the country, Lahorefaces alarming levels of air pollutants, whichinduced this study to focus on the pervasive issue of air pollution in Lahore. For this, the study collected air pollutants data from the Environmental Protection Department of Punjab and analyzed them using the ARIMA model. In the research results, both the observed data and predictive models uncovered concerning trends in pollutant concentrations, ultimatelyportraying a concerning picture for air quality management. Carbon monoxide (CO) levels show a consistent rise, surpassing Pakistan's environmental standards by 2025. Similarly, nitrogen dioxide (NO2) concentrations escalate, exceeding prescribed standards. Ground-level ozone (O3) also demonstrates a substantial increase, surpassing standards by 2025. Both PM2.5 and PM10 exhibit marked upward trends, projected to exceed recommended limits, particularly PM10 throughout the study year. The Air Quality Index exhibits an observable upward trend, fluctuating between 70 and 442 from 2015 to 2020. Similarly, a positive correlation was found between population growth and land use conversion into residential areas. Projections suggest a continuous increase, potentially hitting a severe level of 500 during winter by 2025. These findings point to an impending air pollution crisis, demanding urgent action to address the hazardous situation in the city. The study recommends that urban air pollution should be reduced, and the negative health effects of air pollution should be minimized using vegetation barriers, screens, and greening initiatives. Strict regulations and monitoring initiatives need to be put in place in big cities to monitor pollution and vegetation.

Pattern of eye disease among obese population in Erbil city, Iraq

Background and objective: Obesity is a multifactorial disease. It is a multifactorial pathology that can be related to an altered nutritional behaviour or secondary to genetic, hypothalamic, iatrogenic or endocrine diseases. Obesity and visual acuity are negatively correlated, obesity may be linked to dysfunction of the mechanical and vascular components of the eye. The aim of the study is to find out the impact of obesity on eye health and the pattern of eye disease. Methods: Across-sectional study was conducted in the Ophthalmology Department/ Erbil Teaching Hospital during the period from 1st of August 2021 to 31st of March 2022. A simple random sampling method was adopted, and a total of 300 participants with an age of more than 18 years old were enrolled. Results: The percentage of cataract, glaucoma, age-related maculopathy, papilloedema, keratoconus, and retinal vein occlusion was higher in the case group than in the control group. Obesity is a significant risk factor for cataracts, age-related maculopathy, and papilloedema, while it was insignificant regarding keratoconus and retinal vein occlusion. The mean of internal ocular pressure and central corneal thickness was higher in the case group compared to the control group. Conclusion: The prevalence of ocular disease was higher among the obese population than in those with normal weight. Obesity is a significant risk factor for ocular disease. Age and gender represented additional risk factors in some of the ocular diseases in obese people.

THE SUITABILITY OF ACTIVITIES IN THE TRADE SUB-ZONE (THE CORRIDOR OF LETDA SUJONO ROAD, MEDAN TEMBUNG SUB-DISTRICT, MEDAN CITY)

The development of population and infrastructure in cities can enhance the local economy, as seen in the Letda Sujono Road corridor. This area, located between Medan City and Deli Serdang Regency and near the Bandar Selamat Toll Gate, has seen significant growth in trade and service activities. This growth has spurred the development of housing, public services, commercial spaces, warehousing, and industry, increased land demand and causing potential land-use conflicts and traffic issues. Inappropriate space utilization can lead to urban sprawl, often due to inadequate spatial planning control. The Medan City Detailed Spatial Plan (DSP or Rencana Detail Tata Ruang (RDTR)) designates the Letda Sujono Road corridor as a Trade Sub-zone, with zoning regulations limiting some activities to 10% of the block area. Aims: The objective of this study was to study the suitability of existing activities with the zoning plan which has been regulated in the Medan City Detailed Spatial Plan as a space control content in order to create safe, comfortable and sustainable spatial planning. Methodology and results: This study uses a qualitative descriptive method with spatial analysis to assess the alignment of current activities with the DSP zoning plan. Conclusion, significance and impact study: The findings reveal that 60.84% of the activities are suitable, while 39.16% are not. Some blocks, particularly Block 17-07-01 (Tembung), have exceeded the 10% activity limit, indicating that zoning plans have not been fully realized, with unauthorized activities such as integrated schools and vehicle-related services still present.

Using Parasite Analysis to Investigate the Pathoecology of the Inhabitants of the City of Berezov in Western Siberia (Sixteenth–Nineteenth Centuries)

ABSTRACT The first Russian settlers developed relatively large cities and a new phenomenon called ‘urban habitat’ to the north of Western Siberia. This article presents the results of a study on soil samples taken from the cultural layer of Berezov city during excavations of the city’s kremlin, or civic centre, posad, or town settlement area, and the farmstead within the posad. The samples are dated from the XVI to the end of the XVIII century. Examination of the samples revealed 12 types of parasite eggs from both humans and animals. The city's cultural layer was found to be relatively highly contaminated with parasite eggs. The species composition of parasite eggs in samples collected from the cultural layer varied according to land use, i.e. whether public, communal, or livestock, or sanitary condition in Berezov city. An analysis of historical and archaeological data enabled the reconstruction of certain nutritional aspects of the population in Berezov city at the time. Additionally, certain cultural and abiotic factors contributing to the high parasite infestation of humans and domestic animals were identified, and similarities can be found in the research of other Russian cities of Siberia in the XVI–XIX centuries.

Prevalence of Helicobacter pylori in routine adult tonsillectomies

ABSTRACT Helicobacter pylori, a curved bacterial rod and causative agent of peptic ulcer and gastric adenocarcinoma, is found as an infectious agent in the stomach of over half of the global population. H. pylori has been identified in oral biofilms and its presence in adenotonsillar tissues has been suggested, with variations in testing methodology both proving and disproving its presence. The current study employed 119 formalin-fixed paraffin-embedded tonsillar tissues from an adult population (n=86) in a major metropolitan city with immunohistochemistry procedures using a monoclonal antibody to determine the incidence of H. pylori in the tonsils. H. pylori was identified in 72.1% of the patients and was associated with Actinomyces spp. in 92.0% of those cases. The high incidence of H. pylori in patients undergoing tonsillectomy suggests that H. pylori may be a contributing factor for tonsillitis and tonsillar hypertrophy. Furthermore, the reservoir for H. pylori in the tonsils may explain why some persons remain refractory to antibiotic treatment for gastric H. pylori.

Analysis of Regulation of Costs for Operating Buses in a Transport Company

The problem of increasing passenger traffic remains acute for municipal public transport. The value of this indicator is determined by the interest of citizens in this way of making their trips and determines the feasibility of the carrier’s operation. The authors conducted a study of the problems of public transport services in large- and medium-sized cities, which found that the population’s interest in public urban passenger transport has generally been significantly lost. More than 40% of the city population refuses to travel on public transport, half of the population has questions about the reliability of tariff formation, and the same number of people are not satisfied with the regular route network and schedule. City residents increasingly prefer personal vehicles or taxis for their trips, which negatively affects the revenue side of carriers, as well as the level of social comfort and the quality of life of citizens. Efforts to reduce the operating costs of the carrier are aimed at correcting the current situation with urban transport so that tariffs for transportation are more acceptable for passengers. The formation of tariffs for passenger transportation for transport companies is an urgent and complex task. It is necessary to formulate the tariff in such a way as to cover your own transportation costs in the near future and, at the same time, not exceed the psychological threshold for passengers so as not to cause their negative reaction. In addition, since the transportation of passengers by urban public transport is regulated by the authorities, it is also necessary to provide an economic justification for transportation tariffs. This is difficult in the absence of substantiated indicators of consumption rates of material resources in the transport process. To solve this problem, it is necessary to carefully analyze the current costs of operating the bus fleet, as well as forecast costs for future periods. At different periods, researchers have proposed various approaches for planning the cost of operating a bus fleet. The approach we propose is to use standardization of the consumption of material resources, considering the individual operating conditions of the bus fleet and the influence of various factors.

Exploring impacts of perceived and actual air pollution on commuters’ mode choice

Since people’s decisions are usually based on their perception, Air Pollution Perception (APP) can affect travel mode changes. This research examines the effects of APP and actual air pollution on commuters’ mode choice by developing a hybrid choice model. During a cross-sectional survey in Karaj, the fourth most populous city in Iran, 768 valid questionnaires were gathered including 2795 trips. The results show that APP had a negative effect on choosing public transit. Moreover, the findings indicate that commuters are more likely to use their cars when they feel less in control over air pollution. The findings may be useful in planning policies to manage people’s perception of air pollution in order to make public transit more desirable for car commuters, especially in polluted urban areas.

Suburbanization and transportation in European cities

Abstract We study whether highway and railroad improvements cause population suburbanization in Europe’s cities. We construct a unique population and transportation dataset covering 579 cities from 29 European countries for the period 1961–2011. In order to make a causal inference, we rely on historical instruments. Our average results indicate that highways, but not railroads, were responsible for the suburbanization process: each additional highway ray decreased the share of the central city population by 5 percentage points, whereas new railroads had no impact. The heterogeneity analyses provide evidence of different patterns based on the time of the investment, the city’s size and density, and its geographical location.

Remoteness-attributable financial inequality in dental service utilization in Australian older adults: A Blinder-Oaxaca decomposition.

Oral health is often overlooked in ageing health issues, despite its impact on overall health and quality of life. Older Australians, especially those in rural and remote areas, face difficulties accessing oral health services. The aim of the study was to investigate the factors that contribute to financial barriers to accessing dental services among the ageing population in Australia in relation to their residential location. The study included a weighted sample of Australian adults aged 65 years and over from a population-based survey called the National Study of Adult Oral Health (NSAOH) conducted in 2017-18. Descriptive analysis was conducted and generated cross-tabulation tables to investigate the distributions of the outcome, exposure and covariates, including Sex, Education level (the highest level of education), Equivalised household income, Dental insurance, Concession card ownership, Difficulty paying a dental bill and last dental visit. Blinder-Oaxaca decomposition counterfactual analysis was used to explore the potential impact of a person's residence on their financial difficulty accessing dental services. The findings showed that 26.2% (95% CI: 24.3-29.3) of major city residents and 30.1% (95% CI: 26.9-33.3) of rural residents avoided or delayed dental visits due to cost. The decomposition analysis indicated that 53.8% of the disparities in the prevalence of avoided or delayed dental visits due to cost were explained by the selected variables, while 46.2% remained unexplained. The explanatory variable with the largest contribution was difficulty paying a $200 dental bill, accounting for 62.4% of the differences, followed by dental insurance, last dental visit and equivalised household income, which explained 42.1%, 20.8% and 14.9% of the differences, respectively. Regional/remote populations experience more financial barriers to accessing dental care than major city populations and the identified factors explain a significant proportion of these disparities. Based on the study findings, recommendations include expanding public dental service coverage, evaluating concession card mechanisms and advocating for regular dental visits to mitigate disparities in dental care access.

Elevating hourly PM2.5 forecasting in Istanbul, Türkiye: Leveraging ERA5 reanalysis and genetic algorithms in a comparative machine learning model analysis

Rapid urbanization and industrialization have intensified air pollution, posing severe health risks and necessitating accurate PM2.5 predictions for effective urban air quality management. This study distinguishes itself by utilizing high-resolution ERA5 reanalysis data for a grid-based spatial analysis of Istanbul, Türkiye, a densely populated city with diverse pollutant sources. It assesses the predictive accuracy of advanced machine learning (ML) models—Multiple Linear Regression (MLR), Extreme Gradient Boosting (XGBoost), Light Gradient Boosting (LGB), Random Forest (RF), and Nonlinear Autoregressive with Exogenous Inputs (NARX). Notably, it introduces genetic algorithm optimization for the NARX model to enhance its performance. The models were trained on hourly PM2.5 concentrations from twenty monitoring stations across 2020–2021. Istanbul was divided into seven regions based on ERA5 grid distributions to examine PM2.5 spatial variability. Seventeen input variables from ERA5, including meteorological, land cover, and vegetation parameters, were analyzed using the Neighborhood Component Analysis (NCA) method to identify the most predictive variables. Comparative analysis showed that while all models provided valuable insights (RF > LGB > XGB > MLR), the NARX model outperformed them, particularly with the complex dataset used. The NARX model achieved a high R-value (0.89), low RMSE (5.24 μg/m³), and low MAE (2.94 μg/m³). It performed best in autumn and winter, with the highest accuracy in Region-1 (R-value 0.94) and the lowest in Region-5 (R-value 0.75). This study's success in a complex urban setting with limited monitoring underscores the robustness of the NARX model and the methodology's potential for global application in similar urban contexts. By addressing temporal and spatial variability in air quality predictions, this research sets a new benchmark and highlights the importance of advanced data analysis techniques for developing targeted pollution control strategies and public health policies.

Analyzing the worldwide progression of COVID-19 cases and deaths using nonlinear mixed-effects model.

COVID-19 is an infectious disease that continues to spread worldwide. A precise estimation of the cases and deaths due to COVID-19 would allow for appropriate consideration of healthcare resource allocation, public health response, and vaccination and economic planning, to minimize social damage. In this study, we analyzed the progression of COVID-19 cases and deaths until January 2022 in 156 countries using a nonlinear mixed-effect model based on the SIR framework. Given the major changes in mortality from infection, risk of re-infection and social responses, the analysis was limited to the period before the emergence of the Omicron variant. The impact of infection prevention measures in various countries was assessed, with a specific focus on estimating the effectiveness of lockdowns, where the effect was assumed to change over time. By accounting for excess mortality, our analysis allowed the estimation of unreported cases and deaths, and thus providing a more comprehensive understanding of the impact of pandemic. In the analysis, we identified gross domestic product (GDP), proportion of people aged 65 years or older, latitude of the capital city on transmissibility of infection, and city population and cardiovascular death rate on mortality rate as significant influencing factors. Furthermore, the differences in transmissibility and mortality rates by variants and the effect of vaccination on the mortality rate were assessed. The transmissibility has increased by odds ratios of 1.2 to 1.4 in Beta, Gamma, and Delta variants; mortality rate has increased by odds ratios of 1.7, 2.2, and 1.4 in Beta, Gamma, and Delta variants, respectively; and vaccination decreased the mortality rate by odds ratios of 0.4 and 0.1 in Delta and other variants, respectively.

Estimating dengue disease and economic burden to inform municipal-level policymakers: Method for a pragmatic city-level observational cohort study.

Recent trials have confirmed the effectiveness of promising dengue control technologies - two vaccines and Wolbachia. These would generally be applied at the municipal level. To help local officials decide which, if any, control strategy to implement, they need affordable, timely, and accurate data on dengue burden. Building on our previous work in Mexico, Indonesia, and Thailand, we developed a streamlined prospective method to estimate dengue burden at the municipal level quickly, accurately, and efficiently. The method entails enrolling and repeatedly interviewing 100 patients with laboratory-confirmed dengue. They will be selected after screening and testing about 1,000 patients with clinical dengue. The method will capture both acute and chronic effects relating to disease, economic burden, and psychological impacts (presenteeism). The total time requirements are 1.5 years, comprised of 0.25 years for planning and approvals, 1 year for data collection (a full dengue cycle), and 0 .25 years for data cleaning and analysis. A collaboration with municipal and academic colleagues in the city of Semarang, Central Java, Indonesia shows how the method could be readily applied in Indonesia's eighth largest city (population 1.8 million). Many surveillance studies gather only information on numbers of cases. This proposed method will provide a comprehensive picture of the dengue burden to the health system, payers, and households at the local level.

Seroprevalence and risk factors for SARS-CoV-2 infection in middle-sized cities of Burkina Faso: A descriptive cross-sectional study.

Since March 2020, COVID-19 has evolved from a localized outbreak to a global pandemic. We assessed the seroprevalence of COVID-19 in three towns in the Centre Sud region of Burkina Faso. A population-based cross-sectional survey was conducted in three middle-sized cities in Burkina Faso's Centre Sud region, from June to July 2021. Subjects aged 16 or over at the time of the survey were considered for this seroprevalence study. The Biosynex COVID-19 BSS rapid test was used to detect immunoglobulin G (IgG) and immunoglobulin M (IgM) against SARS-CoV-2. A standardized questionnaire was also administered to collect additional information. A total of 2449 eligible participants (age ≥ 16 years) were identified. Serological tests for COVID-19 were performed in 2155 individuals, of which 2143 valid tests were retained and analyzed. Out of the entire sample, 246 positive tests were observed, corresponding to a prevalence of 11.48%. Prevalence was 9.35% (58 cases) in Kombissiri, 12.86% (80 cases) in Manga and 11.99% (108 cases) in Pô. By gender, 13.37% of women (164 cases) tested positive, and 8.95% of men (82 cases). Women accounted for 66.67% of all positive test subjects. The results from the multivariate analysis show a significantly higher seroprevalence in women (p = 0.007), people over 55 years old (p = 0.004), overweight people (p = 0.026) and those with drinking water sources at home (p = 0.013). The results of this study show that the COVID-19 virus also circulates in the population of middle-sized cities in Burkina Faso, far more than officially reported by the information service of the government of Burkina Faso, given the lack of systematic testing in the general population in the country. The study also highlighted the greater vulnerability of women, older and overweight individuals to the epidemic. The preventive measures put in place to fight the pandemic must take these different factors into account.

Wintertime source apportionment of PM2.5 pollution in million plus population cities of India using WRF-Chem simulation

Wintertime source apportionment of PM2.5 pollution in million plus population cities of India using WRF-Chem simulation

A City Image Study by Kevin Lynch’s Theoretical Approach: A Case Study of Pontianak City, West Kalimantan Province of Indonesia

Pontianak City is the capital city of West Kalimantan Province reaches area coverage of 118.31 km2.This city has multiple functions as the government and economic centrals of the West Kalimantan Province of Indonesia. It is also known as the Equatorial city because it is located on the equator line and by the end of 2023, its population will reach 679.818 people and will become the 26th most populous city in Indonesia. The City of Pontianak located on the equator line with altitude height ranging from 0.1 to 1.5 meters above sea level, and from administrative divisions, Pontianak City consists of several district areas: (a) North Pontianak District, (b) East Pontianak District, (c) South Pontianak District, (d) Southeast Pontianak District, (e) the Pontianak City District, and (f) West Pontianak District, whether from geographical perspective, City of Pontianak is traversed by the longest river in Indonesia, the Kapuas River which has become a life support for the surrounding community. The analytical method applied in this research to study the city image of Pontianak is the triangulation method where it is used to compare information obtained through field observations with theoretical perspectives that have been studied previously. The result found in this article is the City of Pontianak has fulfilled the requirement of 5 elements of city image according to Kevin Lynch’s theory and it has Tugu Khatulistiwa or Equator Monument as a symbol or the icon of Pontianak City.