Global co-occurrences of multi-(emerging)-contaminants in the hotspots of arsenic polluted groundwater : A pattern of menace

• Advancements in analytical techniques have resulted in much progress in understanding co-occurrence of environmental con-taminants. We focused on investigating the global pattern of arsenic (As) co-occurrence with inorganic and emerging con-taminants and then explained the governing factors driving the situation. Major co-occurring inorganic contaminants were found in three sets: i) U, F, Fe, Mn, Pb, & Zn; ii) Al, Mo, Cd, Sb, Br, I, and Se; and iii) Ag, Au, Cr, Cu, Hg, Th, V, Ga, and Ba. Co-occurrences were majorly governed by weathering, redox conditions, recharge/pumping, and surface leaching. Several places around the world started to exhibit As presence with contaminants of emerging concerns like pesticides, per-and polyfluoroalkyl sub-stances (PFAS), endocrine disrupting chemicals (EDCs), and others, that needs to be explored further at fundamentally deeper levels. This is probably one of the first attempts to correlate As co -occurrences with contaminants of emerging concern.

Ämnesord

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)

NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)

TEKNIK OCH TEKNOLOGIER  -- Samhällsbyggnadsteknik -- Vattenteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Civil Engineering -- Water Engineering (hsv//eng)

Nyckelord

Arsenic

Trace elements

Co-occurrence

Co-contamination

Ground-water

Emerging contaminants

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