INPUTS OF COPPER‐BASED CROP PROTECTANTS TO COASTAL CREEKS FROM PASTICULTURE RUNOFF
Identifieur interne : 001112 ( Main/Exploration ); précédent : 001111; suivant : 001113INPUTS OF COPPER‐BASED CROP PROTECTANTS TO COASTAL CREEKS FROM PASTICULTURE RUNOFF
Auteurs : Andrea M. Dietrich ; Daniel L. Gallagher ; Kathryn A. KlawiterSource :
- JAWRA Journal of the American Water Resources Association [ 1093-474X ] ; 2001-04.
English descriptors
- KwdEn :
Abstract
ABSTRACT: Inputs of copper‐based crop protectants from tomato fields grown under plastic mulch agriculture (plasticulture) to an estuarine creek were investigated. Copper was measured in runoff from diverse land‐uses including conventional agriculture, plasticulture, residences, and natural areas. Water column and sediment copper concentrations were measured in plasticulture and control (nonagriculture) watersheds. Copper concentrations in plasticulture‐impacted creeks exceeded background levels episodically. High concentrations occurred during or immediately after runoff‐producing rains. Concentrations of 263 μg/L total copper and 126 μg/L dissolved copper were measured in a tidal creek affected by plasticulture; concentrations exceeded the shellfish LC50 values and the water quality criteria of 2.9 μg/L dissolved copper. Control watersheds indicated background water column levels of ≤ 4 μg/L dissolved copper with similar copper levels during periods with and without rain. The copper concentrations in tomato plasticulture field runoff itself contained up to 238 μg/L dissolved copper. Copper concentrations in runoff from other land‐uses were less than 5 μg/L dissolved copper. Creek sediment samples adjacent to a plasticulture field contained significantly higher copper concentrations than sediments taken from nonplasticulture watersheds.
Url:
DOI: 10.1111/j.1752-1688.2001.tb00968.x
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Klawiter</name></author></analytic><monogr></monogr><series><title level="j">JAWRA Journal of the American Water Resources Association</title><idno type="ISSN">1093-474X</idno><idno type="eISSN">1752-1688</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2001-04">2001-04</date><biblScope unit="volume">37</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="281">281</biblScope><biblScope unit="page" to="293">293</biblScope></imprint><idno type="ISSN">1093-474X</idno></series><idno type="istex">54FDD63B248BEE3C316486E66A91D040E7D8B6E4</idno><idno type="DOI">10.1111/j.1752-1688.2001.tb00968.x</idno><idno type="ArticleID">JAWR281</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1093-474X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>copper</term><term>estuaries</term><term>nonpoint source pollution</term><term>pesticides</term><term>plasticulture</term><term>runoff</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">ABSTRACT: Inputs of copper‐based crop protectants from tomato fields grown under plastic mulch agriculture (plasticulture) to an estuarine creek were investigated. Copper was measured in runoff from diverse land‐uses including conventional agriculture, plasticulture, residences, and natural areas. Water column and sediment copper concentrations were measured in plasticulture and control (nonagriculture) watersheds. Copper concentrations in plasticulture‐impacted creeks exceeded background levels episodically. High concentrations occurred during or immediately after runoff‐producing rains. Concentrations of 263 μg/L total copper and 126 μg/L dissolved copper were measured in a tidal creek affected by plasticulture; concentrations exceeded the shellfish LC50 values and the water quality criteria of 2.9 μg/L dissolved copper. Control watersheds indicated background water column levels of ≤ 4 μg/L dissolved copper with similar copper levels during periods with and without rain. The copper concentrations in tomato plasticulture field runoff itself contained up to 238 μg/L dissolved copper. Copper concentrations in runoff from other land‐uses were less than 5 μg/L dissolved copper. Creek sediment samples adjacent to a plasticulture field contained significantly higher copper concentrations than sediments taken from nonplasticulture watersheds.</div></front></TEI><affiliations><list></list><tree><noCountry><name sortKey="Dietrich, Andrea M" sort="Dietrich, Andrea M" uniqKey="Dietrich A" first="Andrea M." last="Dietrich">Andrea M. Dietrich</name><name sortKey="Gallagher, Daniel L" sort="Gallagher, Daniel L" uniqKey="Gallagher D" first="Daniel L." last="Gallagher">Daniel L. Gallagher</name><name sortKey="Klawiter, Kathryn A" sort="Klawiter, Kathryn A" uniqKey="Klawiter K" first="Kathryn A." last="Klawiter">Kathryn A. Klawiter</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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