Occurrence of aminopolycarboxylates in the aquatic environment of Germany.
Aminopolycarboxylic acids, such as ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), diethylenetriaminepentaacetic acid (DTPA), 1,3-propylenediaminetetraacetic acid (1,3-PDTA), beta-alaninediacetic acid (beta-ADA), and methylglycinediacetic acid (MGDA), are used in large quantities in a broad range of industrial applications and domestic products in order to solubilize or inactivate various metal ions by complex formation. Due to the wide field of their application, their high polarity and partly low degradability, these substances reach the aquatic environment at considerable concentrations (in the microg/L-range) and have also been detected in drinking water. This review evaluates and summarizes the results of long-term research projects, monitoring programs, and published papers concerning the pollution of the aquatic environment by aminopolycarboxylates in Germany. Concentrations and loads of aminopolycarboxylates are presented for various types of water including industrial and domestic waste waters, surface waters (rivers and lakes), raw waters, and drinking waters.
Schmidt
Carsten K
CK
DVGW-Water Technology Center (TZW), Chemical Analysis Department, Karlsruher Strasse 84, 76139 Karlsruhe, Germany. c.schmidt@tzw.de
Fleig
Michael
M
Sacher
Frank
F
Brauch
Heinz-Jürgen
HJ
D004492:Edetic Acid / Q000031:analogs & derivatives*; D004784:Environmental Monitoring / Q000379:methods; D005858:Germany; D007220:Industrial Waste; D014874:Water Pollutants, Chemical; D014876:Water Pollution; D018508:Water Purification
D007220:Industrial Waste; D014874:Water Pollutants, Chemical; C048514:propanoldiaminetetracetic acid; D004492:Edetic Acid