What Do We Know of Childhood Exposures to Metals (Arsenic, Cadmium, Lead, and Mercury) in Emerging Market Countries?

Table 1

Criteria for inclusion of journal articles.

General category	Specific inclusion criteria
Chemical	Arsenic, cadmium, lead, or mercury
Country	Brazil, China, India, Indonesia, Mexico, Poland, Russia, South Korea, Taiwan, or Turkey
Age	≤18 years
Matrix analyzed	Blood or urine
Language	English only
Evidence of contamination or adverse health effects	Contains data on either levels of metal contamination in matrix analyzed or adverse health effects for population of interest