| RRC ID |
21655
|
| 著者 |
Okamura H, Piao M, Aoyama I, Sudo M, Okubo T, Nakamura M.
|
| タイトル |
Algal growth inhibition by river water pollutants in the agricultural area around Lake Biwa, Japan.
|
| ジャーナル |
Environ Pollut
|
| Abstract |
An ecotoxicological study of river water discharged from the agricultural area around Lake Biwa was performed by using algal bioassays to guide chemical analysis. Water samples were collected once a week, at least, for 1 year starting in April 1997 and continuing until April 1998. The toxicities of the dissolved and particulate-adsorbed extracts of water samples were evaluated by the algal growth inhibition test and concentrations of individual pesticides were determined. Most of the river water that was collected during the periods when pesticides were applied to the paddy fields caused algal growth inhibition. Some extracts were found to contain herbicides (molinate, mefenacet, simetryn, or esprocarb) as major compounds. According to chemical assay and bioassay, simetryn was identified as the most toxic compound that caused algal growth inhibition.
|
| 巻・号 |
117(3)
|
| ページ |
411-9
|
| 公開日 |
2002-1-1
|
| DOI |
10.1016/s0269-7491(01)00196-8
|
| PII |
S0269-7491(01)00196-8
|
| PMID |
11911525
|
| MeSH |
Agriculture / methods
Animals
Araceae / drug effects
Biological Assay
Chlorophyta / drug effects*
Chlorophyta / growth & development
Daphnia / drug effects
Ecology
Fresh Water / analysis*
Japan
Lettuce / drug effects
Pesticides / analysis
Pesticides / toxicity*
Seasons
Water Movements
Water Pollutants, Chemical / analysis
Water Pollutants, Chemical / toxicity*
Water Pollution, Chemical / analysis
|
| IF |
6.793
|
| 引用数 |
43
|
|
WOS 分野
|
ENVIRONMENTAL SCIENCES
|
| リソース情報 |
| 藻類 |
NIES-35 |
