Concentrations of chromium, manganese, and lead in air and in avian eggs

摘要

The expansion of urbanization introduces air pollution to wildlife areas. Some metal contaminants occurring in concentrations too small to have any measurable impact on adult birds may seriously affect embryos that are more sensitive to contaminants than the adult. Chromium, manganese, and lead are toxic and can be passed from the hen to the egg. This study relates the concentra- tions of these metals in eggs to their concentrations in air in three cities.