Table 4.
Lead (Pb) levels (mg/kg) in selected seafood over the three-year period.
| Year | Classes | Analyzed Samples | Above LOQ Samples (%) | Min | Max | Average(MB) 1 |
|---|---|---|---|---|---|---|
| 2017 | Mussel | 152 | 138/(91) | 0.040 | 0.560 | 0.128 |
| Clam | 260 | 223/(86) | 0.020 | 0.350 | 0.078 | |
| Oyster | 7 | 7/(100) | 0.090 | 0.400 | 0.190 | |
| Scallop | 37 | 37/(100) | 0.020 | 0.500 | 0.150 | |
| Brown venus | 36 | 36/(100) | 0.030 | 0.260 | 0.110 | |
| Razor clam | 1 | 0 | 0.008 | |||
| Other bivalves | 28 | 25/(89) | 0.030 | 0.450 | 0.117 | |
| Gastropods | 59 | 44/(75) | 0.020 | 0.170 | 0.032 | |
| Echinoderms | 4 | 4/(100) | 0.050 | 0.370 | 0.190 | |
| 2018 | Mussel | 302 | 285/(94) | 0.020 | 0.740 | 0.180 |
| Clam | 308 | 267/(87) | 0.020 | 0.740 | 0.114 | |
| Oyster | 47 | 47/(100) | 0.030 | 0.780 | 0.150 | |
| Scallop | 38 | 37/(97) | 0.030 | 0.420 | 0.175 | |
| Brown venus | 36 | 36/(100) | 0.050 | 0.360 | 0.150 | |
| Razor clam | 16 | 16/(100) | 0.040 | 0.180 | 0.100 | |
| Other bivalves | 29 | 27/(93) | 0.030 | 0.260 | 0.103 | |
| Gastropods | 44 | 37/(84) | 0.020 | 0.410 | 0.052 | |
| Echinoderms | 10 | 10/(100) | 0.040 | 0.400 | 0.200 | |
| 2019 | Mussel | 265 | 236/(89) | 0.020 | 1.070 | 0.215 |
| Clam | 276 | 232/(84) | 0.020 | 1.080 | 0.136 | |
| Oyster | 40 | 38/(95) | 0.030 | 0.370 | 0.124 | |
| Scallop | 18 | 16/(89) | 0.020 | 0.660 | 0.250 | |
| Brown venus | 26 | 26/(100) | 0.070 | 0.430 | 0.230 | |
| Razor clam | 25 | 24/(96) | 0.070 | 0.590 | 0.212 | |
| Other bivalves | 24 | 24/(100) | 0.040 | 0.530 | 0.130 | |
| Gastropods | 17 | 16/(94) | 0.020 | 0.310 | 0.104 | |
| Echinoderms | 10 | 10/(100) | 0.020 | 0.520 | 0.220 |
1 MB = middle bound.