Open AccessMeasuring influential factors for air pollution in New-York-Newark-Jersey City by grey relation analysis
Author(s) -
Baoxin Chen,
Qihong Lu,
Tao Zhang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/769/2/022036
Subject(s) - metropolitan area , air pollution , air pollutants , environmental science , air quality index , pollutant , pollution , population , meteorology , geography , archaeology , demography , sociology , ecology , chemistry , organic chemistry , biology
This study investigates variations of air quality index (AQI) for air pollutants in the metropolitan area (New-York-Newark-Jersey City; NY-NJ-PA) during 2010 - 2019 to identify the key influential factors for air pollution using grey relation analysis method. The results show that the annual averages of daily AQI values for multiple pollutants in NY-NJ-PA generally decreased except O3. The AQI values of O3 fluctuate greatly. The main factors affecting AQI values of CO, PM2.5, O3, SO2, and PM10 are the emissions of CO2, SO2, and NOx, whereas the main factors affecting AQI values of NO are the emissions of SO2, population, and NOx.