Effects of pollution on human growth and development: An introduction

Lawrence M. Schell, Mia V. Gallo, Melinda Denham, Julia Ravenscroft

Research output: Contribution to journalReview articlepeer-review

58 Scopus citations

Abstract

Pollution is a worldwide problem and its potential to influence the physiology of human populations is great. Studies of human growth and development in relation to pollution have increased in number and quality since the mid-twentieth century. Many studies have found that some pollutants have detrimental effects on human growth, particularly prenatal growth. The heavy metal, lead, is commonly found in human populations and is related to smaller size at birth and studies have reported decrements that range up to about 200 grams. Noise stress from transportation sources also is related to reduced prenatal growth with somewhat smaller decrements reported. Studies of humans exposed to polychlorinated biphenyls, one of the persistent organic pollutants, have reduced size at birth, advanced sexual maturation and altered hormone levels related to thyroid regulation. Thus different pollutants exert effects through different physiological pathways. However, some studies have not observed these effects, which indicates that the situation is complex and requires further study with better study designs. Determining the effects of pollutants on human physiology and growth is difficult as it requires fairly large numbers of subjects who are not purposely exposed but for whom exposure can be measured. These effects of pollutants and the mechanisms of effect require further study to understand and, it is hoped, to blunt or block any detrimental effects on human health and well-being.

Original languageEnglish
Pages (from-to)103-112
Number of pages10
JournalJournal of Physiological Anthropology
Volume25
Issue number1
DOIs
StatePublished - 2006

Keywords

  • Children
  • Growth
  • Infants
  • Lead
  • Menarche
  • Noise
  • PCBs
  • Persistent organic pollutants
  • Polychlorinated biphenyls

ASJC Scopus subject areas

  • Human Factors and Ergonomics
  • Physiology
  • Orthopedics and Sports Medicine
  • Anthropology
  • Public Health, Environmental and Occupational Health
  • Physiology (medical)

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