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Worldwide trends in DDT levels in human breast milk

Smith, D.·1999·International Journal of Epidemiology

Abstract

BACKGROUND: Concern over human breast milk contamination with the pesticide DDT (1,1,1-trichloro-2,2-bis(chlorodiphenyl)ethane) has prompted numerous studies around the world during the last five decades. This article examines trends in reported DDT levels, and the apparent effect of restrictions on DDT use. METHODS: More than 130 published values for DDT in human milk since 1951 were compiled, and trend lines were fit for regions of the world. RESULTS: Population means have declined in much of the world, from 5000-10000 microg DDT/kg milk fat to around 1000 today in many areas. Although different regions have different means, the decline seen in various countries corresponds to their restricting DDT use. DISCUSSION: DDT concentrations in human milk have declined in most areas of the world, consistent with restrictions on its use. Nevertheless, levels can be high in areas still using DDT, even higher than the World Health Organization's recommended limit for infants. These results indicate that population averages can be reduced by a predictable amount as DDT use is restricted.

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Metadata

Authors
Smith, D.
Venue
International Journal of Epidemiology
Published
1999-04-01
Volume
28
Issue
2
Pages
179-188
ISSN
  • 0300-5771 (ISSN-L)
  • 1464-3685
OpenAlex
W2169680811
Cited by
213
References
0
FWCI
14.73
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Worldwide trends in DDT levels in human breast milk. https://app.cochat.ai/papers/10.1093/ije/28.2.179
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Smith, D. (1999). Worldwide trends in DDT levels in human breast milk. International Journal of Epidemiology. https://doi.org/10.1093/ije/28.2.179

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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

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