| AOD | aerosol optical depth |
| API | air pollution index |
| AQI | air quality index |
| CEMS | continuous emissions monitoring system |
| CO | carbon monoxide |
| COD | chemical oxygen demand |
| DMSP-OLS | Global Defense Meteorological Satellite Program’s Operational Linescan System |
| EIA | environmental impact assessment |
| EPA | Environmental Protection Agency (USA) |
| EPB | Environmental Protection Bureau |
| EV | electric vehicle |
| FGD | flue gas desulfurization |
| FYP | five-year plan
1996–2000: 9th FYP 2001–2005: 10th FYP 2006–2010: 11th FYP 2011–2015: 12th FYP 2016–2020: 13th FYP
|
| GEOS | Goddard Earth Observing System |
| HEV | hybrid electric vehicle |
| HNO3 | nitric acid |
| H2O | water |
| H2SO4 | sulfuric acid |
| INEGI | Instituto Nacional de Estadística y Geografía (Mexico’s National Institute of Statistics and Geography) |
| Jing-Jin-Ji | Beijing-Tianjin-Hebei |
| MEE | see NEPA |
| MEP | see NEPA |
| MISR | multi-angle imaging spectroradiometer |
| MODIS | moderate resolution imaging spectroradiometer |
| NAAQS | National Ambient Air Quality Standards |
| NDRC | National Development and Reform Commission |
| NEPA, SEPA, MEP, MEE |
between 1988 and 1998: National Environmental Protection Agency (NEPA) between 1998 and 2008: State Environmental Protection Administration (SEPA) between 2008 and 2017: Ministry of Environmental Protection (MEP) since 2018: Ministry of Ecology and Environment (MEE)
|
| NOAA | National Oceanic and Atmospheric Administration |
| NO | nitrogen monoxide |
| NO2 | nitrogen dioxide |
| NOx | nitrogen oxides (combination of nitrogen monoxide, NO, and nitrogen dioxide, NO2) |
| NPC | National People’s Congress |
| O3 | ozone |
| OLS | ordinary least squares |
| OMI | ozone monitoring instrument |
| PBL | planetary boundary layer |
| Pearl River delta | a region encompassing nine prefectures in Guangdong Province, including Guangzhou, Shenzhen, Zhuhai, Foshan, Jiangmen, Zhaoqing, Huizhou, Dongguan, and Zhongshan |
| PM | particulate matter |
| PM2.5 | fine particulate matter; particular matter whose aerodynamic diameter is smaller than 2.5 μm |
| PM10 | coarse particulate matter; particulate matter whose aerodynamic diameter is smaller than 10 μm |
| SASAC | State-Owned Assets Supervision and Administration Commission |
| SeaWiFS | sea-viewing wide field-of-view sensor |
| SEPA | see NEPA |
| SO2 | sulfur dioxide |
| SOE | state-owned enterprise |
| TCZ | Two Control Zones |
| TEC | total emission control |
| TEPJF | Tribunal Electoral del Poder Judicial de la Federación (Mexico’s Electoral Tribunal of the Federal Judiciary) |
| TSP | total suspended particle |
| ULE | ultralow emission |
| VOC | volatile organic compound |
| WHO | World Health Organization |
| Yangtze River delta | Shanghai, southern Jiangsu, and northern Zhejiang |