TY - JOUR
T1 - Systematic and long-term technical validity of toxicity determination and early warning of heavy metal pollution based on an automatic water-toxicity-determination-system
AU - Yi, Yue
AU - Wang, Baoguo
AU - Yi, Xuemei
AU - Zha, Fan
AU - Lin, Haisen
AU - Zhou, Zhijun
AU - Ge, Yanhong
AU - Liu, Hong
N1 - Publisher Copyright:
© Higher Education Press 2024.
PY - 2024/8
Y1 - 2024/8
N2 - Water toxicity determination with electrochemically active bacteria (EAB) shows promise for providing early warnings for heavy metal pollution in water. However, thus far, only idealized tests with a few types of heavy metals have been conducted. In this study, an automatic water-toxicity-determination system with high technical maturity was established, and the toxicological properties of common heavy metals were systematically assessed. The results demonstrated that the common heavy metals linearly inhibited EAB currents in the range of 0.1 mg/L to 0.5 mg/L. The toxicity ranking of the tested heavy metals was Pb2+ > Tl3+ > Cu2+ > Cd2+ > Zn2+ > Ni2+ > Hg2+ > As2+. The toxicity interaction mainly exhibited an antagonistic effect in binary heavy metal mixtures. The system can accurately determine surface water toxicity and rapidly monitor heavy metal pollution, with good repeatability and a long lifetime. Overall, this study demonstrates that EAB are capable of long-term (> 60 d) surface water quality monitoring and on-site early warning of heavy metal pollution. (Figure presented.)
AB - Water toxicity determination with electrochemically active bacteria (EAB) shows promise for providing early warnings for heavy metal pollution in water. However, thus far, only idealized tests with a few types of heavy metals have been conducted. In this study, an automatic water-toxicity-determination system with high technical maturity was established, and the toxicological properties of common heavy metals were systematically assessed. The results demonstrated that the common heavy metals linearly inhibited EAB currents in the range of 0.1 mg/L to 0.5 mg/L. The toxicity ranking of the tested heavy metals was Pb2+ > Tl3+ > Cu2+ > Cd2+ > Zn2+ > Ni2+ > Hg2+ > As2+. The toxicity interaction mainly exhibited an antagonistic effect in binary heavy metal mixtures. The system can accurately determine surface water toxicity and rapidly monitor heavy metal pollution, with good repeatability and a long lifetime. Overall, this study demonstrates that EAB are capable of long-term (> 60 d) surface water quality monitoring and on-site early warning of heavy metal pollution. (Figure presented.)
KW - Biological early warning system
KW - Biosensor
KW - Early warning
KW - Electrochemically active bacteria
KW - Heavy metal pollution
KW - Water toxicity determination
UR - http://www.scopus.com/inward/record.url?scp=85194767215&partnerID=8YFLogxK
U2 - 10.1007/s11783-024-1856-8
DO - 10.1007/s11783-024-1856-8
M3 - Article
AN - SCOPUS:85194767215
SN - 2095-2201
VL - 18
JO - Frontiers of Environmental Science and Engineering
JF - Frontiers of Environmental Science and Engineering
IS - 8
M1 - 96
ER -