OPs | Samples analysed | Detected samples | Positive rate (%) | Concentrations of detected samples in tea (mg/kg) | |||||
---|---|---|---|---|---|---|---|---|---|
Mean | P50 | P95 | P97.5 | P99.9 | Max | ||||
Chlorpyrifos | 1660 | 112 | 6.75 | 0.138 | 0.060 | 0.594 | 0.788 | 1.900 | 1.900 |
Triazophos | 1619 | 42 | 2.59 | 0.152 | 0.125 | 0.427 | 0.801 | 0.830 | 0.830 |
Disulfoton | 1623 | 12 | 0.74 | 0.265 | 0.295 | 0.706 | 0.706 | 0.706 | 0.706 |
Dimethoate | 1642 | 11 | 0.67 | 0.261 | 0.220 | 0.980 | 0.980 | 0.980 | 0.980 |
Monocrotophos | 1634 | 10 | 0.61 | 0.201 | 0.095 | 0.909 | 0.909 | 0.909 | 0.909 |
Parathion-methyl | 1646 | 10 | 0.61 | 0.052 | 0.041 | 0.162 | 0.162 | 0.162 | 0.162 |
Ethion | 1638 | 9 | 0.55 | 0.066 | 0.020 | 0.240 | 0.240 | 0.240 | 0.240 |
Tolclofos-methyl | 386 | 2 | 0.52 | 0.080 | 0.080 | 0.080 | 0.080 | 0.080 | 0.080 |
Acephate | 1635 | 8 | 0.49 | 0.033 | 0.031 | 0.077 | 0.077 | 0.077 | 0.077 |
Methamidophos | 1640 | 8 | 0.49 | 0.057 | 0.033 | 0.120 | 0.120 | 0.120 | 0.120 |
Dichlorvos | 1638 | 7 | 0.43 | 0.055 | 0.014 | 0.130 | 0.130 | 0.130 | 0.130 |
Omethoate | 1628 | 6 | 0.37 | 0.068 | 0.070 | 0.930 | 0.930 | 0.930 | 0.930 |
Fenitrothion | 1638 | 6 | 0.37 | 0.033 | 0.016 | 0.100 | 0.100 | 0.100 | 0.100 |
Parathion | 1642 | 6 | 0.37 | 0.024 | 0.008 | 0.073 | 0.073 | 0.073 | 0.073 |
Phorate | 1649 | 6 | 0.36 | 0.006 | 0.003 | 0.017 | 0.017 | 0.017 | 0.017 |
Chlorpyrifos-methyl | 1598 | 5 | 0.31 | 0.020 | 0.005 | 0.080 | 0.080 | 0.080 | 0.080 |
Phosalone | 1616 | 5 | 0.31 | 0.047 | 0.025 | 0.152 | 0.152 | 0.152 | 0.152 |
Methidathion | 1629 | 5 | 0.31 | 0.076 | 0.044 | 0.170 | 0.170 | 0.170 | 0.170 |
Phosmet | 1575 | 3 | 0.19 | 0.013 | 0.013 | 0.013 | 0.013 | 0.013 | 0.013 |
Malathion | 1645 | 3 | 0.18 | 0.012 | 0.012 | 0.012 | 0.012 | 0.012 | 0.012 |
Pyridaphethione | 40 | 0 | 0 | – | – | – | – | – | – |
Diazinon | 6 | 0 | 0 | – | – | – | – | – | – |
Trichlorfon | 3 | 0 | 0 | – | – | – | – | – | – |
Quinalphos | 3 | 0 | 0 | – | – | – | – | – | – |
Phoxim | 3 | 0 | 0 | – | – | – | – | – | – |