(単位:μg/l)
調 査 地 点 |
平成7年度 |
平成8年度 |
平成9年度 |
平成10年度 |
平成11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 |
石狩川河口 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
- |
- |
- |
- |
- |
- |
堤川河口 |
|
|
|
tr(0.009) |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
仙台湾 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
八郎湖 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
小名浜港 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
tr(0.00023) |
tr(0.00023) |
tr(0.00024) |
霞ケ浦 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
市原・姉崎海岸 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
花見川河口 |
- |
- |
- |
nd |
nd |
nd |
nd |
nd |
nd |
- |
- |
- |
nd |
nd |
nd |
隅田川河口 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
多摩川河口 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
横浜港 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
tr(0.0006) |
tr(0.0006) |
tr(0.0007) |
nd |
nd |
nd |
信濃川河口 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
犀川河口 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
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 |
nd |
nd |
nd |
nd |
nd |
nd |
名古屋港 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
四日市港 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
琵琶湖南湖 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
宮津港 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
桂川宮前橋 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
大和川河口 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
大阪港 |
- |
- |
- |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
姫路沖 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
水島沖 |
- |
- |
- |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
tr(0.00018) |
tr(0.00020) |
tr(0.00019) |
呉港 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
広島湾 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
徳山湾 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
吉野川河口 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
高松港 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
tr(0.00083) |
0.0015 |
tr(0.00030) |
nd |
tr(0.00025) |
tr(0.00057) |
四万十川河口 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
大牟田沖 |
- |
- |
- |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
博多湾 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
tr(0.00046) |
tr(0.00055) |
tr(0.00055) |
nd |
nd |
nd |
洞海湾 |
- |
- |
- |
nd |
nd |
nd |
tr(0.0007) |
tr(0.0006) |
tr(0.0007) |
0.0010 |
0.0012 |
tr(0.00090) |
tr(0.00053) |
tr(0.00047) |
tr(0.00055) |
伊万里湾 |
- |
- |
- |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
長崎港 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
tr(0.00060) |
tr(0.00060) |
0.0010 |
0.0032 |
0.0012 |
0.0040 |
大淀川河口 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
五反田川五反田橋 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
統一検出限界値 |
0.005 |
0.01 |
0.01 |
0.001 |
0.001 |
検 出 頻 度 |
0/87 |
0/108 |
0/108 |
4/102 |
3/105 |
最 大 値 |
nd |
tr |
tr |
0.0015 |
0.0040 |
最 小 値 |
nd |
nd |
nd |
nd |
nd |
幾 何 平 均 |
0.0025 |
0.0027 |
0.0026 |
0.0003 |
0.0003 |
|