It has been nearly two years since the U.S. Environmental Protection Agency (EPA) announced it would direct Union Pacific Railroad to test for toxic chemicals in Houston's Fifth Ward neighborhood. The ...
Discover why you should test your soil in January, with insights from a garden expert. Get ahead of the growing season by ...
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Representative soil sample testing done in a Los Angeles County Public Health study found a higher percentage of samples with lead levels above health-based screening thresholds taken from parcels ...