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Types of Toxins01:36

Types of Toxins

Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
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Pharmaceutical poisoning can occur through various channels, impacting an estimated 2 million hospitalized patients in the U.S. annually with serious adverse drug responses. These scenarios encompass both therapeutic uses, such as drug toxicity, where even standard dosages can lead to severe central nervous system depression, and non-therapeutic exposures, including accidental ingestion by children, and environmental and occupational exposures.Unintentional poisonings often involve exploratory...
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Eliminating Disparities in Children's Lead Exposure: An Unfinished Job.

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Long-term Behavioral and Reproductive Consequences of Embryonic Exposure to Low-dose Toxicants
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Lead exposures in U.S. Children, 2008: implications for prevention.

Ronnie Levin1, Mary Jean Brown, Michael E Kashtock

  • 1U.S. Environmental Protection Agency, Boston, Massachusetts 02114, USA. levin.ronnie@epa.gov

Environmental Health Perspectives
|October 23, 2008
PubMed
Summary

Eliminating pediatric elevated blood lead levels (EBLs) requires controlling multiple lead sources, not just lead paint. Continued efforts and new interventions are crucial for primary prevention in U.S. children.

Keywords:
children’s healthenvironmental healthlead poisoningprimary prevention

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Area of Science:

  • Environmental Health
  • Pediatric Public Health
  • Toxicology

Background:

  • Lead exposure poses significant risks to children's development and lifetime achievement, even at low levels.
  • National policies have reduced lead exposure, but many sources persist, contributing to elevated blood lead levels (EBLs).
  • No safe threshold for lead exposure effects on children has been identified.

Purpose of the Study:

  • To review lead sources in children's environments in the U.S.
  • To assess contributions to children's blood lead levels.
  • To examine source elimination and control efforts, and federal authorities for achieving the public health goal of eliminating pediatric EBLs.

Main Methods:

  • Review of national, state, and local exposure assessments over 50 years.
  • Analysis of risk factors for EBLs, including demographics and housing characteristics.
  • Synthesis of data on lead exposure sources and their impact.

Main Results:

  • Lead paint and dust remain significant sources, potentially accounting for up to 70% of EBLs.
  • Over 30% of current EBLs may stem from non-lead paint sources, including consumer products, ethnic remedies, and ceramics.
  • Lead in public drinking water and older urban areas are ongoing exposure risks.

Conclusions:

  • Achieving the goal of eliminating pediatric EBLs by 2010 necessitates sustained efforts, particularly for lead paint.
  • Developing interventions for primary prevention is essential to stop lead poisoning before it occurs.
  • Cross-governmental collaboration is vital to identify and control all potential lead exposure sources.