Natural environment has the ability to gather some pollutants yet if too much then the environment could no longer handle it. A leaky sewage can pollute an aquifer with I. arsenic as the contaminant. Arsenic is a metalloid existing in the Earth's crush. Exposure is natural yet can be aggravated by the human activities.
Land development creates impervious surfaces through construction of roads, parking lots, and other structures. Impervious surfaces:
Contribute to nonpoint source water pollution by limiting the capacity of soils to filter runoff.
Affect peak flow and water volume, which heighten erosion potential and affect habitat and water quality.
Increase storm water runoff, which can deliver more pollutants to water bodies that residents may rely on for drinking and recreation.1 Storm runoff from urban and suburban areas contains dirt, oils from road surfaces, nutrients from fertilizers, and various toxic compounds.
