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Relationship between herbicide's fate of the river flowing into lake Teganuma and its molecular structure. Teganuma ryunyu kasen ni okeru josozai no dotai to bunshi kozo no kankei

Journal Article:

Abstract

Environmental profiles of agricultural chemicals in a river flowing into Lake Teganuma were surveyed. Their dissolution and adsorption were investigated by using indoor experiments, and their behaviors were discussed from a viewpoint of molecular structure in the compounds. The herbicides detected in the river contained CNP and Benthiocarb were at high concentration at the time of spraying, but decreased sharply thereafter. The CNP had lower concentration than Benthiocarb in the river, indicating little amount flowing out from paddy fields. These differences in the environmental profiles should be attributable to natures of the herbicides. An indoor experiment has revealed that Benthiocarb has lower solubility and higher absorption strength than CNP. It was found with respect to the chemical structures that polarity increases if hetero atoms and hydrophilic substituents exist in moleculars; the solubility of Benthiocarb grows higher than that of hydrocarbons; and adsorption power relates to the area of contact with absorbing media, and absorption rate relates to the solubility, absorption power, and three-dimensional structure. 23 refs., 7 figs., 4 tabs.
Authors:
Tamura, J; [1]  Ogura, N [2] 
  1. Nishi Tokyo University, Yamanashi (Japan). Faculty of Science and Engineering
  2. Tokyo University o Agriculture and Technology, Tokyo (Japan). Faculty of Agriculture
Publication Date:
Apr 10, 1994
Product Type:
Journal Article
Reference Number:
NEDO-94-911924; EDB-94-133305
Resource Relation:
Journal Name: Mizu Kankyo Gakkaishi (Journal of Japan Society on Water Environment); (Japan); Journal Volume: 17:4
Subject:
54 ENVIRONMENTAL SCIENCES; 60 APPLIED LIFE SCIENCES; HERBICIDES; ABSORPTION; CONCENTRATION RATIO; FLOW RATE; MOLECULAR STRUCTURE; SOLUBILITY; SPECTROSCOPY; WETTABILITY; PONDS; JAPAN; RIVERS; PESTICIDES; HYDROPONIC CULTURE; ASIA; CULTIVATION TECHNIQUES; DEVELOPED COUNTRIES; SORPTION; STREAMS; SURFACE WATERS; 540320* - Environment, Aquatic- Chemicals Monitoring & Transport- (1990-); 553003 - Agriculture & Food Technology- Pest & Disease Control- (1987-)
OSTI ID:
6976404
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: ISSN 0916-8958; CODEN: MKGAEY
Submitting Site:
NEDO
Size:
Pages: 39-47
Announcement Date:
Oct 01, 1994

Journal Article:

Citation Formats

Tamura, J, and Ogura, N. Relationship between herbicide's fate of the river flowing into lake Teganuma and its molecular structure. Teganuma ryunyu kasen ni okeru josozai no dotai to bunshi kozo no kankei. Japan: N. p., 1994. Web.
Tamura, J, & Ogura, N. Relationship between herbicide's fate of the river flowing into lake Teganuma and its molecular structure. Teganuma ryunyu kasen ni okeru josozai no dotai to bunshi kozo no kankei. Japan.
Tamura, J, and Ogura, N. 1994. "Relationship between herbicide's fate of the river flowing into lake Teganuma and its molecular structure. Teganuma ryunyu kasen ni okeru josozai no dotai to bunshi kozo no kankei." Japan.
@misc{etde_6976404,
title = {Relationship between herbicide's fate of the river flowing into lake Teganuma and its molecular structure. Teganuma ryunyu kasen ni okeru josozai no dotai to bunshi kozo no kankei}
author = {Tamura, J, and Ogura, N}
abstractNote = {Environmental profiles of agricultural chemicals in a river flowing into Lake Teganuma were surveyed. Their dissolution and adsorption were investigated by using indoor experiments, and their behaviors were discussed from a viewpoint of molecular structure in the compounds. The herbicides detected in the river contained CNP and Benthiocarb were at high concentration at the time of spraying, but decreased sharply thereafter. The CNP had lower concentration than Benthiocarb in the river, indicating little amount flowing out from paddy fields. These differences in the environmental profiles should be attributable to natures of the herbicides. An indoor experiment has revealed that Benthiocarb has lower solubility and higher absorption strength than CNP. It was found with respect to the chemical structures that polarity increases if hetero atoms and hydrophilic substituents exist in moleculars; the solubility of Benthiocarb grows higher than that of hydrocarbons; and adsorption power relates to the area of contact with absorbing media, and absorption rate relates to the solubility, absorption power, and three-dimensional structure. 23 refs., 7 figs., 4 tabs.}
journal = {Mizu Kankyo Gakkaishi (Journal of Japan Society on Water Environment); (Japan)}
volume = {17:4}
journal type = {AC}
place = {Japan}
year = {1994}
month = {Apr}
}