Environmental Engineering Reference
In-Depth Information
recommendations to businesses had been implemented due to significant construc-
tion and planning costs (e.g., construction of bunding around a wash-off area),
hence a reduction in heavy metal pollution due to these measures may only become
apparent in future surveys.
Limiting the range of pollutants analyzed to Zn, Cu and TPH reduced chemical
analysis costs considerably, while maintaining the ability to discriminate between
relatively clean and heavily polluted sub catchments. Further testing with alterna-
tive media is recommended to refine the sampling method, as targeted media could
provide sensitive detection of a wider range of pollutants
[12]
.
Conclusion
Passive sampling with solid media was an affordable alternative to traditional storm-
water monitoring approaches. Our results suggest the E&E program was more effec-
tive in reducing stormwater pollution by hydrocarbons than by heavy metals.
Significant differences in accumulated pollutant concentrations between treatment
and control sub-catchments demonstrate changing community attitudes to stormwater
management can have an immediate effect on the quality of urban runoff.
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TrAC Trends in Analytical Chemistry 16:36-44
