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Lead levels in Birmingham dusts and soils
D J Davies1, J M Watt, I Thornton
1Applied Geochemistry Research Group, Imperial College of Science and Technology, University of London, Royal School of Mines, United Kingdom.
The Science of the Total Environment
|December 1, 1987
Summary
Inner-city homes in Birmingham show varied lead levels. Older houses and those undergoing decoration had higher lead concentrations in dust and soil, with proximity to garages and industrial sites also increasing risk.
Area of Science:
- Environmental Science
- Urban Ecology
- Public Health
Background:
- Lead contamination in urban environments poses a significant public health risk.
- Understanding lead distribution in various environmental matrices within residential areas is crucial for targeted interventions.
Purpose of the Study:
- To quantify lead concentrations in housedust, pavement dust, road dust, and garden soil in inner-city Birmingham.
- To identify factors influencing lead levels, such as property age, ongoing decoration, and proximity to potential lead sources.
Main Methods:
- Samples of housedust, pavement dust, road dust, and garden soil were collected from 97 inner-city houses.
- Lead concentrations were measured using established analytical techniques.
- Statistical analysis was performed to assess the influence of property age, decoration status, and proximity to industrial sites and roads.
Main Results:
- The highest mean dust lead concentration was found under doormats (615 µg g⁻¹).
- Housedust lead levels were generally below the national mean, but soil lead concentrations were slightly higher.
- Older properties (>35 years), houses undergoing decoration, and those near commercial garages showed elevated lead levels.
- Soil lead was higher near waste land, metal industries, and roads (<10 m). Road dust in industrial areas had higher lead than in residential areas.
Conclusions:
- Property age and ongoing renovation activities are significant determinants of lead exposure risk within homes.
- Proximity to industrial activities, waste sites, and busy roads increases lead contamination in garden soil and road dust.
- Targeted strategies are needed to mitigate lead exposure in vulnerable urban populations, particularly in older housing stock.