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Temporal Variation of Mercury in Effluent from Two Municipal Wastewater‐Treatment Plants in Southwest Ohio
Author(s) -
Perusini Heather B.,
Hammerschmidt Chad R.
Publication year - 2020
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1002/etc.4692
Subject(s) - mercury (programming language) , effluent , environmental science , wastewater , environmental chemistry , sewage treatment , mercury pollution , pollution , seasonality , environmental engineering , hydrology (agriculture) , ecology , chemistry , biology , geology , geotechnical engineering , computer science , programming language
Wastewater‐treatment plants (WWTPs) are an important source of mercury (Hg) to surface waters, but little is known about temporal variability of efflux to aquatic systems. We found that Hg concentrations in effluent varied by about a factor of 2 on monthly, weekly, and hourly timescale comparisons. These results suggest that limited sampling can yield a representative concentration with reasonable uncertainty for purposes of estimating the environmental significance of Hg from WWTPs. Environ Toxicol Chem 2020;39:1027–1031. © 2020 SETAC