China is currently one of the countries impacted by severe atmospheric ozone (O 3) and
particulate matter (PM) pollution. Due to their moderately long lifetimes, O 3 and PM can be …

Abstract A long-term (2013–2019) PM 2.5 speciation dataset measured in Tian**, the
largest industrial city in northern China, was analyzed with dispersion normalized positive …

As primary emissions have been declining in recent decades in China, secondary pollution,
like ozone (O 3) and secondary aerosols are main pollutants deteriorating air quality. The …

Abstract Recently, nitrate (NO3–) levels in winter pollution in eastern China have been
increasing yearly and have become the main component of PM2. 5. The factors contributing …

Ambient air quality, specifically fine particulate matter (PM 2.5) pollution, poses a global
health concern due to its associations with adverse health effects and persistent presence in …

Ozone (O 3) has become a significant air pollutant in China in recent years. O 3 abatement
is challenging due to the nonlinear response of O 3 to precursors nitrogen oxides (NO x) and …

We have analyzed near-global stratospheric data (and mesospheric data as well for H 2 O)
in terms of absolute abundances, variability, and trends for O 3, H 2 O, HCl, N 2 O, and HNO …

Particulate nitrate is a major component of fine particulate matter (PM2. 5). Its formation may
be varyingly sensitive to emissions of ammonia (NH3), nitrogen oxides (NOx≡ NO+ NO2) …

Carbonaceous aerosols play a vital role in global climate patterns due to their potent light
absorption capabilities. However, the light absorption enhancement effect (E abs) of black …

Abstract In 2021, the World Health Organization ranked Nigeria among the most polluted
nations in the world, an indication of a deteriorating air quality, especially in the major urban …