The results showed the presence of pesticide residues in bore water, as well as in the MC supply water. A total of seven pesticides were detected in these water samples, but ethion was not among those detected in the samples. Among the different groups of pesticides, OP pesticides were present in the range of 0.002–0.768gL−1 with maximum concentrations for triazofos
(0.768gL−1) and metribuzin (2.51gL−1) in their respective groups (Table 6). Almost 100% of the samples showed the presence of triazofos and monocrotofos, while only 64% of the water was contaminated with metribuzin. Quinolfos, atrazine, propanil and imedacloprid were detected in 46%, 38%, 23% and 23%, respectively, in bore water samples. The presence of other OP pesticides
(quinolfos, atrazine, propanil and …show more content…
One example reported the concentrations of the OP pesticides dimethoate and methyl parathion at 0.20 and 0.41gL−1, respectively, in the Ganga River water in Narora (U.P.), India [10].
Similarly, OP pesticides reported in Indian rainwater were in the range of 0.050–4.000gL−1 and showed maximum contamination with cypermethrin (1.000gL−1) and monocrotofos
(4.000gL−1). Almost 80% of the samples showed residues above the MRL of 0.5gL−1 fixed for multi-residues, and on the basis of single pesticides, 16–50% of the samples contained residues above the MRL value of 0.1gL−1 [11]. The OP pesticides dimethoate and methyl parathion were also detected at concentration levels of
0.41–0.56gL−1 and 0.16–0.50gL−1, respectively, in Ganga River water near Kanpur, India [34].
The presence of these pesticides in water might be due to surface water runoff, which can carry pesticides from areas such as agricultural fields and residential properties into lakes, rivers and reservoirs. These areas can then carry pesticides through the
(0.768gL−1) and metribuzin (2.51gL−1) in their respective groups (Table 6). Almost 100% of the samples showed the presence of triazofos and monocrotofos, while only 64% of the water was contaminated with metribuzin. Quinolfos, atrazine, propanil and imedacloprid were detected in 46%, 38%, 23% and 23%, respectively, in bore water samples. The presence of other OP pesticides
(quinolfos, atrazine, propanil and …show more content…
One example reported the concentrations of the OP pesticides dimethoate and methyl parathion at 0.20 and 0.41gL−1, respectively, in the Ganga River water in Narora (U.P.), India [10].
Similarly, OP pesticides reported in Indian rainwater were in the range of 0.050–4.000gL−1 and showed maximum contamination with cypermethrin (1.000gL−1) and monocrotofos
(4.000gL−1). Almost 80% of the samples showed residues above the MRL of 0.5gL−1 fixed for multi-residues, and on the basis of single pesticides, 16–50% of the samples contained residues above the MRL value of 0.1gL−1 [11]. The OP pesticides dimethoate and methyl parathion were also detected at concentration levels of
0.41–0.56gL−1 and 0.16–0.50gL−1, respectively, in Ganga River water near Kanpur, India [34].
The presence of these pesticides in water might be due to surface water runoff, which can carry pesticides from areas such as agricultural fields and residential properties into lakes, rivers and reservoirs. These areas can then carry pesticides through the