Dry Tobacco Research Articles

Dynamical Adsorption Behavior Prediction of Dried Tobacco Leaf Heterogeneous Interfaces through Simulation and Image Recognition Techniques.

The process of spraying water and flavorings on dry tobacco is an important factor in the industrial environment and product quality. Tobacco as a complex porous fiber material, the interfacial transfer process of water is complex. In this study, machine learning and image recognition techniques were utilized to quickly obtain the structural parameters of the tobacco surface and construct a cellular structure model of the tobacco surface. In situ observation of the droplet impact spreading process was carried out using a high-speed camera to explore the droplet dissipation dynamics on different surfaces. And the competing processes of droplet wetting and evaporation under the influence of surface microstructure were determined by combining experimental studies and finite element simulation calculations. Based on the characteristics of tobacco pore size distribution, the infiltration under gas-liquid two-phase action was transformed into single-phase flow transfer under capillary force, and the continuous droplet infiltration process was simulated. A parallel artificial membrane permeability measurement method of bionic tobacco waxy layer was constructed for the screening of spray dosing copenetrant. This study brings new insights into the wetting of porous fibrous materials and is important for exploring the wetting process and additive development process influenced by the microstructure.

Penyuluhan Bahaya Rokok Elektrik Bagi Kesehatan Kepada Remaja Persaudaraan Setia Hati Terate Ranting Tugu Semarang

Electric cigarettes or what are often called vapes are a type of electronic nicotine delivery agent. In electric cigarettes what is inhaled does not come from dry tobacco leaves, but liquid. In some circles, it is said that electric cigarettes are considered safer than conventional cigarettes, apart from that, electric cigarettes are considered to be a technique for reducing smoking habits for users. The aim of the community service activities carried out for the teenagers of Persaudaraan Setia Hati Terate Ranting Tugu Semarang is to increase teenagers' knowledge of the dangers of electric cigarettes for health. Community service activities are carried out using the lecture method. Based on the community service activities that have been carried out, the results obtained are an increase in teenagers' knowledge of the dangers of electric cigarettes for health and the desire of teenagers who smoke to stop smoking.

Сравнително изследване на ориенталски сортове тютюн от четири екотипа в условията на опитно поле – с. Марково

Varieties from different оriental tobacco ecotypes are a great sensitivity to the conditions of the environment. In recent years, some varieties of tobacco have been grown in areas other than those for which they were selected. This necessitates to study their plasticity, morphology and quality in different untypical conditions. During the period 2021-2022, biometric, quality and some basic chemical indicators were investigated in the dry tobacco of the four varieties of Krumovgrad 90, Elenski 817, Dupnitsa 160 and Dzebel 576 belonging to four different ecotypes (Ecotype Krumovgrad, Ecotype Eastern Balkans, Ecotype Dupnitsa and Ecotype Dzebel Basma). The experiments were conducted in an еxperimental field (EF)-Markovo. The values of chemical indicators were determined in an Accredited Laboratory Complex (s) to TTPI. The results show that climatic conditions are a determining factor for plant development and for the quality of the raw material formed, with better biometric indicators reported in 2022. The investigated varieties have a relatively high percentage of the I-st class. In the conditions of EF - Markovo, the highest nicotine values were reported in the variety Elenski 817. Nicotine values in Dupnitsa 160 and Krumovgrad 90 varieties are lower in tobacco from the 2022 harvest. Climate conditions have a great impact on morphological and chemical indicators in the studied varieties.

Solanesol sequential extraction from tobacco leaves using microwave-ultrasound-assisted extraction (MUAE): MAE optimization

Solanesol (C45H74O) is an aliphatic terpene alcohol of nine isoprene units found in the tobacco plant (Nicotiana Tabacum L.). The long and complex biosynthetic pathway of solanesol makes the extraction method still the best way to obtain solanesol. This work evaluates the optimum conditions for sequential extraction from tobacco leaves using microwave-ultrasound-assisted extraction (MUAE) as a green extraction method. There were two stages of extraction (sequential): first, microwave-assisted extraction (MAE), followed by ultrasound-assisted extraction (UAE). At the MAE stage, dry tobacco powder was extracted with variations of water-to-solid (feed) ratio (S/F) from 1:1 to 10:1 (mL/g), power from 200 to 800 W, and time from 0.5 to 2 min. Optimum conditions were obtained at 6:1 (mL/g), 400 W, and 1.5 min, respectively. The UAE stage was fixed with the solvent-to-solid (feed) ratio (S/F), solvent ratio (v/v), time, and temperature of 40:1, 1:2 (PE:ethanolic acid), 30 min, and 40 °C, respectively. The optimum solanesol yield was 3.0 % (w/w), and a nicotine yield of 1.41 % (%w/w) was obtained under the same conditions. The resulting crude solanesol was then purified using silica gel column chromatography (CC), resulting in a purity of 85 %. The yield of extracted solanesol is much higher than in other studies due to the use of fresh leaves and MUAE method.

Изследване на основни химични показатели никотин, общи захари и общ азот при линии тютюн от екотип Крумовград

Dry tobacco quality determined by the content of the main chemical indicators nicotine, total sugars, total nitrogen and the ratio between them. Strengthening regulations by the World Health Organization (WHO) to the chemical composition of tobacco, define the need to create a suitable breeding material. During the period 2020- 2022 in the Accredited Тesting Laboratory Complex at TTPI were determined the values of the main chemical indicators - nicotine, total sugars and total nitrogen in the first and second class dry tobacco from four oriental tobacco lines of the Krumovgrad ecotype, studied in the conditions on an experimental field (EF) - in Markovo village. Two controls from the Krumovgrad ecotype - variety Krumovgrad 90 and from the Eastern Balkan ecotype - variety Elenski 817 were used. The results show, the highest percentage of total nitrogen and nicotine, and respectively the lowest of total sugars, were reported in harvest for the 2021, characterized by higher average monthly temperatures and less rainfall during the plants vegetation period. According to the nicotine indicator, the studied lines (except for line 73) have average values between the two controls for harvests in the 2021 and 2022. The highest percentage of nicotine in 2020 and 2021, and an average of the three experimental years was reported in line 71, and the lowest in line 70. The lowest variation of the studied chemical indicators was established in line 71. The studied lines are valuable breeding material corresponding to the diverse needs of the tobacco industry.

Assessing the thermal efficiency and emission reduction potential of alcohol-based fuel curing equipment in tobacco-curing

So far, coal, petroleum, and natural gas are still the most widely used fuels, and the emissions of SO2, NOX and particulate matter produced from their combustion have a serious influence on the air. Therefore, it is necessary to develop a clean fuel. In this study, the bulk curing barns were equipped with different fuel equipment, Barn A used traditional coal heating equipment; Barn B used biomass briquettes fuel (BBF) integrated heating equipment; Barn C equipped with alcohol-based fuel (ABF) heating equipment. The temperature of the outer surface of the heating equipment, the exhaust gas of the chimney, and the curing heat efficiency and energy consumption were analyzed. Compared with the barn BBF and barn coal, the barn ABF can meet the flue-cured tobacco curing highest temperature requirements of 68 °C, the accuracy of the target dry bulb temperature (DBT) curve during the curing of flue-cured tobacco was 93.4%. At the same time, during ABF combustion, the emissions of CO2 and CO were 40.82% and 0.19%, respectively. However, no emissions of NOX, SO2, and H2S were detected in the chimney exhaust. Compared with the barn BBF and barn coal, the thermal efficiency of barn ABF heating equipment in the barn was increased by 44.78% and 86.28%, respectively. Additionally, the coast per kilogram of dry tobacco was reduced by 19.44% and 45.28%, respectively. Therefore, compared to barn coal and barn BBF, the barn ABF can control temperature changes more accurately, and shows an obvious advantage in environmental protection and heat utilization efficiency.

Dry tobacco leaves: an in vivo and in silico approach to the consequences of occupational exposure.

Exposure of tobacco workers handling dried tobacco leaves has been linked to an increased risk of toxicity and respiratory illness due to the presence of nicotine and other chemicals. This study aimed to evaluate the DNA damage caused by the exposure of tobacco growers during the dry leaf classification process and the relation to cellular mechanisms. A total of 86 individuals participated in the study, divided into a group exposed to dry tobacco (n = 44) and a control group (n = 42). Genotoxicity was evaluated using the alkaline comet assay and lymphocyte micronucleus (MN) assay (CBMN-Cyt), and measurement of telomere length. The levels of oxidative and nitrosative stress were evaluated through the formation of thiobarbituric acid reactive species, and nitric oxide levels, respectively. The inorganic elements were measured in the samples using particle-induced X-ray emission method. The combination of variables was demonstrated through principal component analysis and the interactions were expanded through systems biology. Comet assay, MN, death cells, thiobarbituric acid reactive species, and nitrosative stress showed a significant increase for all exposed groups in relation to the control. Telomere length showed a significant decrease for exposed women and total exposed group in relation to men and control groups, respectively. Bromine (Br) and rubidium (Rb) in the exposed group presented higher levels than control groups. Correlations between nitrate and apoptosis; Br and MN and necrosis; and Rb and telomeres; besides age and DNA damage and death cells were observed. The systems biology analysis demonstrated that tobacco elements can increase the nuclear translocation of NFKB dimers inducing HDAC2 expression, which, associated with BRCA1 protein, can potentially repress transcription of genes that promote DNA repair. Dry tobacco workers exposed to dry leaves and their different agents showed DNA damage by different mechanisms, including redox imbalance.

THE EFFECT OF STRATEGIC RELATIONSHIP ON BUSINESS VALUE

The purpose of this study was to determine the effect of strategic relationships on business value in the dry tobacco leaf industry in West Nusa Tenggara, Indonesia. This study takes an economic approach, especially management sciences with a focus on strategic management. This research is descriptive and verification. Data collection techniques used were questionnaires and observations. The results showed that strategic relationships have a positive and significant effect on business value. This means that the better the application of strategic relationships, the better the business value of the dry tobacco leaf industry in West Nusa Tenggara, Indonesia.

Suitability of Blended Minjingu Fertilisers for Flue-Cured Tobacco Production in Tanzania's Sandy Soils

Objective: To evaluate the suitability of minjingu N10P18K24 top-dressed with minjingu CAN27% N fertilizer blends for tobacco yield and quality. Methods: The experiment was laid out in a randomized complete block design in 3 sites during the 2020-2021 farming season at Mtanila (Chunya), Tumbi (Tabora) and Songambele (Urambo). The experiment was done 3 times and used 5 types of treatment as described below: T1=standard N10P18K24+standard CAN27%, T2=minjingu N10P18K24+minjingu CAN27%, T3=minjingu N10P18K24 standard CAN27%, T4=standard N10P18K24 minjingu CAN27% and T5=Absolute control. The plot measured was 6m×6m. Tobacco variety (Nicotiana tabacum L. cv. K326) seed sourced from the Tobacco Research Institute of Tanzania was used in the experiment. Seedbeds were first raised in a nursery with a spacing of 1.5×20m before being transplanted in field plots after 60 days. Basal application of N10P18K24 fertilizer was done a week after transplanting tobacco seedlings, followed by top-dressing CAN27N% fertilizer 2 weeks after application of N10P18K24 fertilizer. All agronomic management procedures were strictly observed. Results: Across the sites, the tobacco plants fertilized with minjingu basal N10P18K24 fertilizer and top-dressed with minjingu CAN27% (T2) yielded 1942.59kg ha-1 of dry tobacco leaf, which did not significantly (P≤0.001) differ with the yield of 2033.64kg ha-1 from plots fertilized with the standard N10P18K24 and top-dressed with the standard CAN27% (T1). The tobacco plants fertilized with standard N10P18K24 and top dressed with minjingu CAN27% produce higher yields of dry leaf (1738.88kg ha-1). This indicates that minjingu CAN27% fertilizer significantly contributed to the increased yield when applied in combination with minjingu N10P18K24. Conclusion: Minjingu N10P18K24 and minjingu CAN27% yielded tobacco plants that were not significantly different to those yielded by application of standard N10P18K24 and standard CAN27%. Additionally, the minjingu CAN27% contributed significantly to the dry leaf yield and quality of the tobacco.

Prevalence of Smoking among Male Medical Students at Majmaah University, Saudi Arabia

Smoking is defined as burning dry tobacco leaves and inhaling smoke from the burn. This process may be done using different forms of tobbaco products, including cigarettes (Cigars, Little Cigars, Cigarillos), electronic cigarettes, and hookah (shisha). Smoking can give rise to lung diseases such as chronic obstructive pulmonary disease (COPD) and has been proven to be the underlying cause in 84% of deaths in lung cancer and 83% mortalities in COPD. This study was conducted to determine the prevalence of tobacco smoking among male students of the Majmaah University, Saudi Arabia. This cross-sectional study was performed from January to February 2020 on among medical students of Majmaah University, Saudi Arabia. A pretested questionnaire was used to collect data while the SPSS was used for data analysis. From 256 male medical students, only 113 responded to the questionnaire. The prevalence of smoking was found to be 19.5% (n=22) with most smoked cigarettes (50%). Most smokers (50 %) were in the lowest age group, 19-21 years. There was an increase in smoking with an increase in income. Of the 22 respondents who smoked, 10 started smoking when they were 14 to 17 years old. In conclusion, the study shows a low prevalence of smoking among male medical students in the College of Medicine of Majmaah University. Most smokers consume cigarettes, and the majority are not considering quitting

ANALYSIS OF THE POTENTIAL INCOME OF TOBACCO (Nicotiana tabacum L.) FARMERS IN LIMAPULUH KOTA REGENCY OF WEST SUMATERA PROVINCE

West Sumatra is one of the tobacco producing provinces in Indonesia and the largest producer is Limapuluh Kota Regency. The majority of the population of Limapuluh Kota Regency livelihoods as farmers and one of them is tobacco farmers. The profession of tobacco farmers is often a seasonal profession for the community. Because the price, production and area of tobacco land are fluctuating. This research aims to find out the potential of tobacco farming to farmers' incomes in terms of income when compared to UMP West Sumatra, business feasibility, minimum land area and price. Research methods are survey using questionnaire instruments. The data used is primary and secondary data. Data analysis methods use income analysis, Z test comparison analysis, feasibility analysis, minimum land area and price. The results showed that the analysis of wet and dry tobacco farm income has the potential to provide benefits for farmers indicated by the value of the R/C feasibility analysis > 1. Comparative analysis with UMP West Sumatra using Test Z showed if the H1 hypothesis was accepted. Analysis of land area and minimum selling price shows that land area and price level appropriate to achieve income level in accordance with UMP West Sumatra.

Improvement of Nicotine Removal and Ethanol Fermentability From Tobacco Stalk by Integration of Dilute Sulfuric Acid Presoak and Instant Catapult Steam Explosion Pretreatment.

The nicotine from tobacco stalk showed obvious inhibitory effect on the activity of cellulase and fermentability of microorganisms, which seriously hinders the utilization of tobacco stalk. Dilute sulfuric acid presoak of tobacco stalk was used to enhance the performance of instant catapult steam explosion (ICSE) for tobacco stalk pretreatment. The presoak was beneficial to break the recalcitrant structure of tobacco stalk, reduce nicotine content to relieve the inhibition on the activity of cellulase and metabolism of microorganisms, and promote the performance of enzymatic hydrolysis and ethanol fermentation. The optimized 0.8% sulfuric acid (w/w) presoak–integrated ICSE pretreatment resulted in 85.54% nicotine removal from tobacco stalk; meanwhile, the total sugar concentration from enzymatic hydrolysis of pretreated tobacco stalk increased from 33.40 to 53.81 g/L (the ratio of dry tobacco stalk to water was 1:8, w/w), ethanol concentration increased 103.36% from 5.95 to 12.10 g/L in flask, compared with separate ICSE pretreatment. Finally, the ethanol concentration achieved the highest 23.53 g/L in a 5-L fermenter with the ethanol yield from the glucose of tobacco stalk hydrolysate achieving 71.40% by increasing the solid loading of the tobacco stalk in the enzymatic hydrolysis process (the ratio of dry tobacco stalk to water was 1:4, w/w). These results achieved the expected purpose of efficient utilization of discarded tobacco stalk.

Influence of tobacco on the behavior, parasitism and mortality of Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) associated with eggs of Ephestia kuehniella (Zeller) (Lepidoptera: Pyralidae)

Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae), is widely used in augmentative biological control programs. However, there is no information on the behavior and biology of this parasitoid in stored tobacco. Thus, this study aims to evaluate the chemotactic response, parasitism, and mortality of females of T. pretiosum parasitizing eggs of Ephestia kuehniella (Zeller) (Lepidoptera: Pyralidae) in the presence of different tobacco types. The chemotactic responses of T. pretiosum females were observed with a double and multiple choice olfactometer. The odors of dry Burley and Virginia tobacco and of Virginia tobacco seedlings were evaluated. Treatments with or without the presence of E. kuehniella eggs were compared. To evaluate parasitism with and without choice, eggs of E. kuehniella adhered to the same tobacco used in the olfactometer. The eggs of E. kuehniella were offered to a female of T. pretiosum for 2 h, with adult parasitoid mortality recorded. In double-choice olfactometer there was no attraction of T. pretiosum females to the odors of the different types and classes of dry tobacco evaluated when compared to the control (air). Only tobacco seedlings and E. kuehniella eggs attracted the parasitoid. Females of T. pretiosum preferred tobacco infested with host eggs regardless of the type and class of tobacco. In multiple-choice olfactometer T. pretiosum females spent the same time in the area of the arms containing tobacco as in the area of arm containing control (air). The percentage of apparent parasitism of T. pretiosum varied according to the surface on which the host's eggs adhered. Although females of T. pretiosum responded positively to the host's volatiles, even with the presence of dry tobacco, when they came into direct contact with some types and classes of tobacco there was no parasitism.

Genotoxic effect induced by dried nicotiana tabacum leaves from tobacco barns (kiln-houses) in chinese hamster lung fibroblast cells (V79)

ABSTRACT Nicotiana tabacum is the most cultivated tobacco species in the state of Rio Grande do Sul, Brazil. Workers who handle the plant are exposed to the leaf components during the harvesting process and when separating and classifying the dried leaves. In addition to nicotine, after the drying process, other components may be found including tobacco-specific nitrosamines, polycyclic aromatic hydrocarbons, as well as pesticides residues. The objective of this study was to examine the genotoxicity attributed to the aqueous extract of dried tobacco leaves obtained from tobacco barns using Chinese hamster lung fibroblast cells (V79) as a model system by employing alkaline comet assay, micronucleus (MN) and Ames test. MTT assay was used to assess cytotoxicity and establish concentrations for this study. Data demonstrated cell viability > 85% for concentrations of 0.625–5 mg/ml while the comet assay indicated a significant increase in DNA damage at all concentrations tested. A significant elevation of MN and nuclear buds (NBUD) was found for 5 mg/ml compared to control and other dry tobacco leaves concentrations (0.625–2.5 mg/ml). Mutagenicity was not found using the Salmonella/Microsome test (TA98, TA100, and TA102 strains) with and without metabolic activation. The concentration of inorganic elements was determined employing the PIXE technique, and 13 inorganic elements were detected. Using CG/MS nicotine amounts present were 1.56 mg/g dry tobacco leaf powder. Due to the observed genotoxicity in V79 cells, more investigations are needed to protect the health of tobacco workers exposed daily to this complex mixture of toxic substances present in dry tobacco leaves.

Tobacco stalks as a sustainable energy source in civil sector: Assessment of techno-economic and environmental potential

Tobacco is traditionally used for cigarettes and cigars manufacturing and after the drying process a great quantity of dry tobacco stalks is treated as waste. In this framework, the scope of the paper is to examine the use of tobacco stems to feed a biomass boiler after a chipping process. The study is focused on southern Italy area thus, firstly, the assessment of tobacco availability in Italy and Campania region has been determined. Then, Burley tobacco stalks sampled out in an air-curing factory of south Italy crop have been characterized according to ASTM D5142 and ASTM D5373 standards. Thereby, biomass and natural gas fuelled boilers have been compared through an energy, environmental and economic analysis on simulative basis. Both systems satisfy the thermal energy demands of a multi-purpose condominium located in a cold Italian climatic zone near the factory. The results have demonstrated that boiler fed by tobacco chips ensures environmental and economic advantages compared to traditional system. In particular, it guarantees a reduction of CO2 emissions up to 16.59 tCO2 in one of investigated scenarios and a simple payback period and a net present value of about 5.6 years and 17,168 € (without economic support), respectively.

Ethnomodelling on atag construction in Ajung Village, Jember Regency

Atag functions as a place for the air curing process to dry tobacco leaves. This building, which is made of bamboo, has existed in Indonesia since 1850 and used to produce authentic quality cigars. Initially, this building was only utilized for local materials, however, based on the shape, dimensions, and construction, there is a tendency for atag to be established by considering several technical aspects. Therefore, this study aims to examine the technical ideas, such as calculations, practices, and procedures for making Atag using the ethnomodelling strategy. The results showed that the community's practices and calculations in building atag were a logical response in adapting to natural conditions such as climate, wind, and humidity. It also provided intelligence in utilizing the potential of local materials such as bamboo and sugarcane leaves

Impactos ambientais da produção agrícola do tabaco orgânico e convencional no Sul do Brasil

Foi realizado uma Análise de Ciclo de Vida da produção de tabaco orgânico e convencional no sul do Brasil, com o objetivo de avaliar os impactos ambientais associados às etapas de produção de mudas, lavoura, cura e transporte. Os dados utilizados para a caracterização foram obtidos através da aplicação de questionários aos produtores e transportadores e também empregados dados de produção de 12 mil produtores de tabaco, disponibilizados por uma empresa beneficiadora da região. A avaliação dos impactos foi realizada por meio da Análise de Ciclo de Vida. A unidade de referência foi a produção de uma tonelada de tabaco seco. Foram analisadas seis categorias de impacto, sendo Potencial de Aquecimento Global, Acidificação Terrestre, Ecotoxicidade Terrestre Eutrofização da água doce, Uso da terra e Escassez de recursos fósseis. Os resultados conseguiram transparecer as etapas de maior impacto nas duas formas de produção. Na comparação de resultados entre os sistemas de plantio em cada categoria de impacto foi possível verificar que o plantio orgânico apresenta impactos maiores para as categorias de acidificação terrestre, potencial de aquecimento global e uso da terra. Por sua vez, o plantio convencional teve maiores valores totais de impactos para as categorias de potencial de eutrofização da água doce e escassez de recursos fósseis.

Sarmalık Kıyılmış Tütünlerde Uygulanan Tarımsal İşlemler ve Kalite Özelliklerinin Belirlenmesi

The aim of this study is to determine the chemical content of roll-your-own tobacco produced in Turkey and its position within the reference limit values. The study was conducted in the regions of Eastern and Southeastern Anatolia (Mardin, Diyarbakır, Hatay, Mus, Bitlis, Batman, Adiyaman and Malatya) where roll-your-own tobacco is produced intensively in 2017. The chemical compositions is determined by collecting dry tobacco leaf samples from 30 spots in such a way that determined to represent the region. In this study, it is determined that sulfur and nicotine content in tobacco leaves are above reference limit values whereas cadmium and arsenic are within the reference limit values. Glucose, chlorogenic acid and routine rates that affect quality positively in tobacco are determined to be low when compared to quality type tobacco. In the production of roll-your-own tobacco in Turkey, it is determined that sparse planting, more irrigation-fertilization and intensive sulfur are used, contrary to oriental tobacco production. These differences in agricultural production directly affect the chemical composition of tobacco. As a result, it is determined that nicotine rate and sulphur contents are high in tobacco.

A cost-effective identification of tobacco alkaloids using porous Si SERS substrates for forensic and bioanalytical applications

With use of surface-enhanced Raman scattering (SERS) substrate, we are able to identify alkaloids of tobacco leaves. First, porous Si arrays were developed using metal-assisted chemical etching and followed by gold (Au) thin layer (50 nm) coating. Au decorated porous Si arrays provide a strong localized electric field and responsible for the enhancement of weak Raman signals of target molecules. Detection of model molecule rhodamine B at low concentration (10−9 M) confirmed the SERS activity of the developed substrates. The enhancement factor was calculated to be approximate 106. Further, developed substrates were utilized to identify alkaloid in solution of dry tobacco leaves (1 g and 0.25 g) and water (100 Ml). Raman peak 1030 cm−1 corresponding to standard nicotine was observed. Understanding of tobacco composition and their Raman vibration mode could be beneficial to decide the biomarker of various diseases related to tobacco chewing and smoking. This work highlights the level free detection of tobacco alkaloids and confirms that Raman spectroscopy technique can utilize for quality control, forensic and bioanalytical analyses of tobacco alkaloids at trace level.

Tobacco use and oral health status among adolescents visiting patliputra medical college and hospital, Dhanbad

Introduction: Tobacco use is one of the main risk factors for a number of chronic diseases, including cardiovascular diseases, lung cancer, and oral cancer. Tobacco epidemic is one of the public health threats killing nearly six million people yearly. Tobacco use also contributes to poor oral health causing staining, bad breath, and tooth decay. Different studies in India are suggestive of upward trend in the use of tobacco even in adolescents.Objectives: The objectives of this study are to find the prevalence of tobacco use among adolescents in an urban slum and to assess the oral health status among them.Materials and Methods: This cross-sectional study was carried out as a part of oral health assessment camp conducted in an urban slum. All adolescents attending the camp were recruited in the study after due informed consent, the final sample size is 130.Results: The overall tobacco use among adolescents was found to be 95.8% adolescent boys and 27.6% among adolescent girls. The most common reasons cited for tobacco use were peer pressure followed by parent's influence. Smokeless tobacco (dry tobacco, lime, and gutkha) was consumed by 39.13% boys and 19% girls. Smoking was prevalent among 16.7% boys and 8.6% girls. However, 41.7% adolescent boys consumed both forms of tobacco. The prevalence of dental caries was high in both boys (77.7%) and girls (55.2%). The presence of tartar was found in 47.3% boys and 22.4% girls. Bleeding gums was found in more number of girls (29.3%) as compared to boys (25%). The other morbidities found on examination were ulcer (16.7% boys and 3.5% girls) and oral submucous fibrosis (27.8% boys and 3.5% girls).Conclusion: Appropriate intervention is required because adolescence is a tender period where these risk factors such as tobacco consumption and oral hygiene could be modified by awareness and counseling.