Articles with "background levels" as a keyword



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Influence of the origin of the air mass on the background levels of atmospheric particulate matter and secondary inorganic compounds in the Madrid air basin

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Published in 2019 at "Environmental Science and Pollution Research"

DOI: 10.1007/s11356-019-06205-8

Abstract: This study has assessed the influence of the origin of air mass on levels of particulate matter (PM10) and chemical composition (SO42− and NO3−) in the air basin of Madrid. A data set of back-trajectories… read more here.

Keywords: air; background; background levels; air basin ... See more keywords
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A multi-laboratory investigation of drug background levels.

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Published in 2019 at "Forensic chemistry"

DOI: 10.1016/j.forc.2019.100184

Abstract: Identifying and quantifying the drug background in operational environments such as forensic laboratories is an emerging body of research. Knowing these levels is crucial to addressing issues like occupational exposure risk - due to the… read more here.

Keywords: multi laboratory; laboratory investigation; drug; drug background ... See more keywords
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Natural Hydrogeochemical Background Levels in the Carste Lagoa Santa Protection Unit, Minas Gerais, Brazil

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Published in 2020 at "Journal of South American Earth Sciences"

DOI: 10.1016/j.jsames.2020.102985

Abstract: Abstract The identification of hydrogeochemical anomalies in karst water resources represents a crucial step in Brazil's water management plans. Accelerated urban and industrial development occurs in the region that includes the Carste Lagoa Santa Protection… read more here.

Keywords: santa protection; lagoa santa; minas gerais; carste lagoa ... See more keywords
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Background levels of methane in Mars’ atmosphere show strong seasonal variations

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Published in 2018 at "Science"

DOI: 10.1126/science.aaq0131

Abstract: Measuring martian organics and methane The Curiosity rover has been sampling on Mars for the past 5 years (see the Perspective by ten Kate). Eigenbrode et al. used two instruments in the SAM (Sample Analysis… read more here.

Keywords: methane mars; levels methane; methane; mars atmosphere ... See more keywords