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Toxicity and Exposure Assessment for Children's Health (TEACH)
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Toxicity and Exposure Assessment for Children's Health (TEACH)

Welcome to TEACH. This searchable database contains overviews of scientific literature in the field of children's* environmental health.

TEACH currently contains over 1,400 references from January 1972 to January 2003. These references cover information on environmental contaminants that potentially impact children's health and are updated annually.

Start searching now by clicking on: Query the TEACH Database. You will be brought to the search page where you can search for information by chemical, year, author, keyword, etc. TEACH will search for your terms exactly as typed, so please check to be sure that they are correctly spelled. Multiple search terms should be separated by a comma. This search will access brief summaries of peer-reviewed research articles, including specific results of exposure values and statistical analysis when available.

More details about the studies can be found in the studies themselves or in the abstracts listed at the National Library of Medicine's PubMed Exit Disclaimer. Use PubMed to search for the specific research article by author and year and retrieve the entire abstract from the paper.

You can also click on Chemical Summary Forms to retrieve short documents that provide an overview of these chemicals of concern and their impact on children's health. They include sections on special concerns for children, consideration for decision-making, common exposure media, toxicity, regulatory issues, and background on the chemical.

The TEACH project was created and developed by the U.S. EPA Region 5 TEACH Workgroup with funding by the U.S. EPA Office of Children's Health Protection. Technical support was provided by Environmental Health Consulting, Inc.

The goal of the TEACH project is to complement existing children's health information resources by providing a listing and summary of scientific literature applicable to children's health risks due to chemical exposure. It is hoped that this information will support existing children's health efforts.


* Childhood is a sequence of lifestages rather than a subpopulation -- the distinction being that a subpopulation refers to a portion of the population, whereas a lifestage is inclusive of the entire population.

impressionistic image of a child playing on rocks next to a lake

Recent Additions

Child Development

Prenatal exposure to mercury was assessed in 779 mother-infant pairs who resided in the Republic of Seychelles, and behavioral and cognitive tests were performed when the children reached nine years of age. Meyers et al found no association between increased exposure and decreased performance on neurocognitive, language, memory, motor, perceptual motor, and behavioral functions. Mean prenatal methylmercury exposure was 6.9±4.5 as measured during maternal hair growth during pregnancy.

Low Birth Weight

Environmental pollutants in New York City may adversely affect fetal development. Perera et al studied 263 non smoking African-American and Dominican women and investigated the effect of PAH exposure on birth outcomes. Among African-American women, high prenatal exposure to PAH was associated with lower birth weight and smaller head circumference.

Neurodevelopment

The range of PCB 153 seen in 10 neurodevelopmental studies was 30-450ng/g maternal serum lipid with the median of the 10 study medians coming in at 110 ng/g. Longnecker et al found that the distribution of PCB 153 exposure in most of these developmental studies over lapped substantially. Exposure levels in the Faroe Islands study were about 3-4-fold higher than most other studies.

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