平成14年度(2002年度)版 「化学物質と環境」 | |
第5部 平成13年度有機スズ化合物に関する環境調査結果 |
表8-1 トリフェニルスズ化合物に関する底質調査結果 |
(濃度単位:ng/g-dry) |
調 査 地 点 | 平成2年度 | 平成3年度 | 平成4年度 | 平成5年度 | 平成6年度 | 平成7年度 | ||||||||||||
検体1 | 検体2 | 検体3 | 検体1 | 検体2 | 検体3 | 検体1 | 検体2 | 検体3 | 検体1 | 検体2 | 検体3 | 検体1 | 検体2 | 検体3 | 検体1 | 検体2 | 検体3 | |
石狩川河口 | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd |
堤川河口 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
仙台湾 | 4.0 | 4.0 | 3.0 | 1.0 | 2.0 | 2.0 | 5.0 | 5.0 | 9.0 | 3.0 | 5.0 | 3.0 | 6.0 | - | - | - | - | - |
八郎湖 | nd | nd | nd | - | - | - | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd |
小名浜港 | 6.0 | 45 | 66 | 11 | 17 | 11 | nd | nd | nd | 1.0 | 1.0 | 1.0 | 4.0 | 3.0 | nd | 1.0 | 1.0 | nd |
霞ケ浦 | - | - | - | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd |
市原・姉崎海岸 | 19 | 30 | 8.5 | 18 | 7.0 | 3.0 | 21 | 8.0 | 35 | nd | nd | nd | nd | nd | nd | nd | nd | nd |
花見川河口 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2.8 |
隅田川河口 | 12 | 15 | 38 | 2.5 | 4.8 | 1.9 | 3.4 | 3.9 | 2.5 | 3.2 | 3.2 | 3.2 | 6.8 | 6.7 | 5.9 | 2.7 | 3.9 | 2.9 |
多摩川河口 | 11 | 19 | 15 | 3.0 | 4.0 | 5.2 | 14 | 18 | 16 | 6.7 | 5.8 | 6.6 | 2.6 | 3.1 | 4.1 | 3.0 | 2.7 | 2.3 |
横浜港 | 31 | 39 | 38 | 40 | 87 | 32 | 7.0 | 3.0 | 9.0 | 18 | 24 | 9.0 | 10 | 18 | 12 | 13 | 14 | 7.0 |
信濃川河口 | 3.0 | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | 2.6 | nd | nd | 2.6 | nd |
犀川河口 | 3.1 | nd | 7.0 | nd | nd | 1.4 | 5.6 | nd | nd | nd | 0.9 | 2.7 | nd | nd | 2.1 | nd | nd | nd |
諏訪湖 | - | - | - | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd |
清水港 | nd | nd | nd | nd | nd | nd | nd | nd | nd | 1.0 | 1.0 | 1.0 | 2.0 | 1.0 | 2.0 | 1.2 | tr(0.8) | 1.6 |
名古屋港 | 11 | 1.0 | 16 | 6.0 | nd | 2.0 | 10 | 6.0 | 1.0 | 2.0 | 3.0 | 4.0 | nd | 6.0 | nd | 4.6 | 6.5 | 3.8 |
四日市港 | 22 | 7.0 | 5.0 | 9.9 | 13 | 8.0 | 24 | 13 | 16 | 8.1 | 7.0 | 7.1 | 4.2 | 19 | - | 15 | nd | nd |
琵琶湖南湖 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
宮津港 | nd | nd | nd | 4.8 | nd | nd | 1.9 | 1.6 | 1.8 | nd | nd | nd | nd | 4.1 | nd | nd | nd | nd |
桂川宮前橋 | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd |
大和川河口 | - | - | - | 7.0 | 10 | 10 | - | - | - | 3.0 | 4.0 | 2.0 | - | - | - | 4.0 | 6 | 6.0 |
大阪港 | 130 | 94 | 110 | nd | 340 | 130 | 25 | 13 | 13 | 52 | 66 | 54 | 72 | 13 | 11 | - | - | - |
姫路沖 | 11 | 18 | 24 | 2.9 | 8.7 | 8.4 | 1.0 | nd | 1.0 | - | - | - | - | - | - | nd | nd | nd |
水島沖 | 21 | 28 | 58 | 22 | 12 | 50 | 5.1 | 4.3 | 3.9 | 0.9 | 1.6 | 0.6 | 2.1 | 1.5 | nd | 1.7 | 2.3 | - |
呉港 | 38 | 67 | 41 | 38 | 49 | 65 | - | - | - | - | - | - | - | - | - | - | - | - |
広島湾 | - | - | - | - | - | - | 11 | 28 | 10 | 10 | 7.4 | 7.6 | 16 | 9.8 | 11 | 13 | 32 | 16 |
徳山湾 | 1.0 | tr(0.8) | tr(0.8) | tr(0.5) | tr(0.6) | tr(0.5) | 1.9 | 1.0 | 1.0 | 1.9 | 1.2 | 1.5 | 2.6 | 1.1 | 1.5 | 1.8 | 1.2 | 1.5 |
吉野川河口 | - | - | - | nd | nd | nd | nd | nd | 1 | nd | nd | nd | nd | nd | nd | nd | nd | nd |
高松港 | 41 | 9.1 | 4.5 | 3.6 | 2.3 | 1.0 | 8.5 | 3.2 | 1.2 | 2.9 | 1.8 | 0.7 | 5.6 | 3.1 | 6.1 | 7.8 | 3.0 | nd |
四万十川河口 | nd | nd | nd | - | - | - | nd | nd | 1.0 | nd | nd | nd | tr(0.8) | nd | 13 | 12 | nd | tr(0.8) |
大牟田沖 | - | - | - | 1.6 | - | 12 | 11 | 23 | nd | 1.0 | 12 | 4.0 | - | - | 13 | 19 | 28 | 110 |
博多湾 | 3.5 | 3.2 | 2.8 | 11 | 14 | 8.3 | 3.1 | 3.3 | 2.6 | 4.0 | 3.3 | 4.4 | 1.3 | 1.3 | 1.2 | 1.3 | 1.3 | 2.6 |
洞海湾 | 56 | 77 | 99 | 19 | 160 | 60 | 90 | 33 | - | 150 | 52 | 22 | 260 | 120 | 40 | 67 | 11 | 4.4 |
伊万里湾 | - | - | - | - | - | - | 8.9 | 5.9 | 3.3 | 8.6 | 16 | 4.9 | 9.9 | 15 | 5.0 | 3.0 | 3.0 | 3.0 |
長崎港 | 28 | 10 | 7.0 | 26 | 9.0 | 12 | 2.2 | 2.3 | 9.7 | 10 | 7.9 | 5.1 | tr(0.9) | tr(0.9) | tr(0.5) | 5.3 | 3.8 | 13 |
大淀川河口 | nd | nd | nd | nd | nd | 1.0 | nd | nd | nd | nd | nd | nd | nd | 1.0 | nd | nd | nd | nd |
五反田川五反田橋 | nd | nd | nd | 2.0 | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd | nd |
統一検出限界値 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | ||||||||||||
検 出 頻 度 | 52/81 | 55/89 | 57/95 | 59/96 | 47/88 | 48/93 | ||||||||||||
最大値 | 130 | 340 | 90 | 150 | 260 | 110 | ||||||||||||
最小値 | nd | nd | nd | nd | nd | nd | ||||||||||||
幾 何 平 均 | 4.8 | 3.3 | 2.3 | 1.8 | 2.2 | 1.7 |
(注) | 1 TBTO換算値 |
2 ndは不検出、"-"は欠測または未調査。 | |
3 幾何平均値はndを各地点の検出限界値の1/2として算出した。 |