نتایج جستجو برای: ozone precursors
تعداد نتایج: 59104 فیلتر نتایج به سال:
A survey of 16 US drinking water treatment plants was conducted on the occurrence, formation, and control of emerging disinfection by-products (DBPs). The formation and control trends of certain emerging carbonaceous (haloacetaldehyde) and nitrogenous (haloacetonitrile, halonitromethane, cyanogen halide, nitrosamine) DBPs were different from those of the regulated trihalomethanes (THMs). This w...
Increases in ground-level ozone (O3) have been observed during the COVID-19 lockdown many places around world, primarily due to uncoordinated emission reductions of O3 precursors. In Guangzhou, capital Guangdong province South China, distinctively decreased lockdown. Such a phenomenon was attributed meteorological variations and weakening local formation, as indicated by chemical transport mode...
Abstract. Aerosols are a source of great uncertainty in radiative forcing predictions and have poorly understood health impacts. Most aerosol mass is formed the atmosphere from reactive gas-phase organic precursors, forming secondary (SOA). Semivolatile compounds (SVOCs) (effective saturation concentration, C*, 10−1–103 µg m−3) comprise large fraction aerosol, while intermediate-volatility (IVO...
A major objective of the Mediterranean INtensive Oxidant Study (MINOS) was to investigate long-range transport of pollutants (notably ozone precursor species). Here we present trace gas measurements from the DLR (German Aerospace Organization) Falcon aircraft in the eastern Mediterranean troposphere. Ten day backward trajectories and a coupled chemistry-climate model (ECHAM4) were used to study...
Multi-model ensembles are frequently used to assess understanding of the response of ozone and methane lifetime to changes in emissions of ozone precursors such as NOx , VOCs (volatile organic compounds) and CO. When these ozone changes are used to calculate radiative forcing (RF) (and climate metrics such as the global warming potential (GWP) and global temperature-change potential (GTP)) ther...
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