Читать книгу Groundwater Geochemistry - Группа авторов - Страница 104

Point sources are recognizable, quantifiable, and controllable sources. The drainage pipes of industries and factories that directly break out into the water, oil spilling by oil ship and tankers, and discharge of municipal and sewage waste are all major point sources of water pollution. The other point sources are domestic, hospital, industrial, and mining wastes. The domestic wastes that occur from residence, faculties, institutions, and laboratories are major threats to human health because these sources directly pollute the drinking water. While the industrials and landfills are vital sources, heavy metal pollution is a huge cause of contamination of groundwater as well as surface water (Talabi and Kayode 2019). Consequently, it has an adverse effect on human health, animals, and marine life owing to its carcinogenic nature. Most likely, the hospital waste discharged knowingly and unknowingly into water bodies diminishes the water quality day by day (Kümmerer 2001; Emmanuel et al. 2005; Emmanuel et al. 2009). Over the last decades, mining wastes have also drawn more attention for water pollution. The mining waste from minerals, coal mines, and heavy metal ores are major origins for heavy metal pollution (Pal et al. 2010; Lapworth et al. 2012).