Air Quality Management and Pollution Control Strategies

Air quality management encompasses a spectrum of scientific, technological and policy measures aimed at understanding, mitigating and ultimately preventing the release of harmful pollutants into the atmosphere. Central to this endeavour are continuous monitoring networks and remote sensing platforms that characterise spatial and temporal patterns of key contaminants such as fine particulate matter (PM2.5), nitrogen oxides (NOx) and ground-level ozone (O3). Advanced atmospheric models integrate emission inventories, meteorological data and chemical transformation processes to forecast air quality under different scenarios and inform regulatory thresholds. Policy instruments range from emission standards, permitting systems and economic incentives to market-based mechanisms such as cap-and-trade, complemented by end-of-pipe controls and cleaner production technologies at industrial and power generation facilities. Urban planning and transport policies further reduce exposure by promoting low-emission vehicles, congestion charging and expansion of public transport networks. Emerging strategies emphasise co-benefits between air pollution reduction and climate change mitigation, encouraging transitions to cleaner energy systems. The global significance of these approaches is underscored by transboundary pollution, public health impacts and the need for international collaboration on monitoring protocols, data sharing and harmonised control frameworks.

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Air Quality Management and Pollution Control Strategies publication trend

The graph below shows the total number of articles in air quality management and pollution control strategies across all publications each year (not limited to Nature Index journals).

Technical terms

PM2.5: Fine particulate matter with aerodynamic diameter ≤2.5 micrometres, associated with adverse health effects.

NOx: Collective term for nitrogen oxides, mainly nitric oxide and nitrogen dioxide, precursors to ozone and secondary particulates.

O3: Ozone at ground level, a secondary pollutant formed by photochemical reactions of precursors in the presence of sunlight.

Air Quality Index (AQI): Composite index translating pollutant concentrations into a single scale indicating potential health risk levels for the general public.

End-of-pipe controls: Pollution abatement technologies applied at emission sources to remove or neutralise pollutants before they are released into the atmosphere.

References

1. PM2.5 reductions in Chinese cities from 2013 to 2019 remain significant despite the inflating effects of meteorological conditions. One Earth (2021).
2. Air Pollution Characteristics during the 2022 Beijing Winter Olympics. International Journal of Environmental Research and Public Health (2022).
3. Co-Benefits of Energy Structure Transformation and Pollution Control for Air Quality and Public Health until 2050 in Guangdong, China. International Journal of Environmental Research and Public Health (2022).