1. "Heavy Metal Contamination in Soil and Water - Effects on Human Health," Environmental Pollution, Volume 247, 2019, Pages 802-813. (https://doi.org/10.1016/j.envpol.2018.12.001)
2. "Sources of Heavy Metals and Metalloids in Soils," Environmental Geochemistry and Health, Volume 32, Issue 1, 2010, Pages 7-18. (https://doi.org/10.1007/s10653-009-9278-y)
3. "Heavy Metals in Water: Presence, Treatment, and Environmental Impact," International Journal of Environmental Research and Public Health, Volume 7, Issue 7, 2010, Pages 2745-2768. (https://doi.org/10.3390/ijerph7072745)
4. "Heavy Metal Contamination of Soils: Sources, Indicators, and Assessment," Journal of Environmental Engineering and Landscape Management, Volume 20, Issue 2, 2012, Pages 104-115. (https://dx.doi.org/10.3846/16486897.2011.625906)
5. "Heavy Metals in Contaminated Soils: A Review of Sources, Chemistry, Risks, and Remediation," Environmental Protection Department, Government of Hong Kong. (https://www.epd.gov.hk/epd/sites/default/files/epd/english/environmentinhk/pollution-prob/soil-contamination/related_issues/files/reports_on_ heavy_metals_in_contaminated_soils_e.pdf)
Give sources to heavy metals contamination and state its citation and references
1 answer