Long-term trends in concentrations and sources of PM2.5–bound metals and elements in central Los Angeles
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DOI: 10.1016/j.atmosenv.2021.118361
Abstract: Abstract In this study, we investigated long-term trends in the ambient concentrations and sources of redox-active metals and trace elements in central Los Angeles over the period of 2005-2018. Mass concentrations of PM2.5-bound metals and… read more here.
Keywords: road; concentrations sources; los angeles; long term ... See more keywords
Concentrations and sources of methylxanthines in a Northern German river system
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DOI: 10.1016/j.scitotenv.2021.145898
Abstract: Abstract Methylxanthines are commonly recommended as anthropogenic markers, yet possible diffuse sources are largely unaccounted for. In this study, eight methylxanthines and xanthine were determined jointly in an entire river system for the first time.… read more here.
Keywords: sources methylxanthines; concentrations sources; river; river wietze ... See more keywords