Abstract
The assessment of local air pollution due to aircraft emissions at/near the airport is an important issue from the standpoint of environment and human health, but has not received due attention in China. In this paper, the pollutant emissions (i.e. HC, CO, NOx, SOx and PM) from aircraft during landing and take-off (LTO) cycles at Nanjing Lukou Airport (NKG) in 2016 were investigated using an improved method, which considered the taxi-in and –out time calculated based on the real data from the Civil Aviation Administration of China (CAAC), instead of using the referenced time recommended by ICAO. First, the pollutant emissions and their characteristics were studied from different perspectives. Second, two various mitigation measures of emissions were proposed, and the performance of emission reduction was analysed. Our analysis shows that: (1) A320 and B738 emitted the largest emissions at NKG; (2) pollutants were mainly emitted during the taxi mode, followed by climb mode; (3) B738 had the lowest emissions per (seat•LTO) among all aircraft, while CRJ had the lowest emissions per unit LTO; (4) shortening the taxiing time and upgrading aircraft engines are both effective measures to mitigate pollutant emissions.
Highlights
In recent years, air pollution has attracted an increasing concern within public opinion and scientific community in developing countries, just like what happened in the developed countries several decades ago
The objectives of this paper are reported to: (i) develop a relatively accurate inventory of pollutant emissions (HC, CO, NOx, SOx and particulate matter (PM)) from aircraft landing and take-off (LTO) operations based on the actual taxi-in and -out information of each flight and adjusted TIM, as well as fuel flows and emission indices revised by real meteorological parameters; (ii) grasp the distribution characteristics of pollutant emissions from four different views; (iii) investigate the emission reduction results of two different mitigation measures, at the Nanjing Lukou International Airport (NKG), China
The amount of pollutant emissions and its characteristics were analysed from four different viewpoints, and the emission reduction effects of two various mitigation measures, i.e., shortening the taxiing time and upgrading the aircraft engines, were discussed in detail
Summary
Air pollution has attracted an increasing concern within public opinion and scientific community in developing countries, just like what happened in the developed countries several decades ago. This is because of the known relationship between being surrounded by the polluted air and the increased adverse impact on human health [1, 2]. With the rapid growth in the aviation industry, pollutant emissions from the aviation sector increased by 98% from 1990 to 2006 [3] They became an air pollution source that cannot be ignored. Airports are suffering from enormous pressure to pay close attention to and reduce pollutant emissions
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