The study reveals that groundwater in atolls is vulnerable to frequent droughts, making it unreliable for drinking water. The team proposes strategies to increase the resilience of small island communities to water-related changes, including improving institutional management and community participation.
A four-year study found that sunn hemp cover crop significantly reduces contamination levels of atrazine and its products in groundwater. The use of sunn hemp can help mitigate the risk of groundwater contamination in Southern Florida, where soil and water conditions indicate potential for leaching from atrazine-based herbicides.
A study found that shifting to water-efficient crops like cotton and soybean can decrease irrigation water use by nearly 66% on rice fields. Implementing irrigation water pricing also improves environmental conditions, but its impact on farm income is modest.
Food crops like corn, lettuce, and potato take up antibiotics from soils treated with manure containing the antibiotic Sulfamethazine. This raises concerns about the potential for contamination of the human food supply, particularly among vulnerable populations like young children who may experience allergic reactions.
A study of Baltimore's surface soils found a mosaic of soil types, with high chemical variability and differences in potassium, phosphorus levels, and bulk density due to fertilization and trampling. The researchers discovered no relationships between land use and heavy metal levels, instead finding correlations with surface rock types.