1. Air pollution is greatest environmental threat to health;Friedrich;Global Health,2018
2. Impact of NOx reduction on long-term ozone trends in an urban atmosphere;Itano;Sci. Total Environ.,2007
3. Atmospheric chemistry of VOCs and NOx;Atkinson;Atmos. Environ.,2000
4. Environmental Protection Agency, Nitrogen Oxides Emissions, in: U.S.E.P. Agency (Ed.) Report on the Environment, 2018.
5. Ambient (outdoor) air pollution, World Health Organization, 2018.