Editing Gun safety (section)

===Toxins and pollutants===
In recent years the toxic effects of ammunition and firearm cleaning agents have been highlighted.<ref name="NIOSH"/>

*Lead dust may build up on indoor ranges.<ref name="NIOSH"/>
*Lead ammunition left in nature may become mobilized by [[Acid rain#Soils|acid rain]].
*Older ammunition may have [[mercury (element)|mercury]]-based primers.
*Lead accumulates in shooting range backstops.<ref name="NIOSH"/>

Indoor ranges require good ventilation to remove pollutants such as powder, smoke, and lead dust from the air around the shooters, and regular cleaning and maintenance to prevent buildup of contaminants.<ref name="NIOSH"/><ref>{{cite web |title=JSP403 - Chapter 30 - Control of Hazardous Substances in Indoor Ranges |url=https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/138248/JSP403_Vol2_Chap30_DLRSC.pdf |website=UK Government Publishing Service |publisher=Ministry of Defense |access-date=27 June 2024 |language=en-gb }}</ref>

Indoor and outdoor ranges typically require extensive decontamination when they are decommissioned to remove all traces of lead, copper, and powder residues from the area.
Lead, copper and other metals will also be released when a firearm is cleaned. Highly aggressive solvents and other agents used to remove lead and powder fouling may also present a hazard to health. Installing good ventilation, washing hands after handling firearms, and cleaning the space where the firearm was handled lessens the risk of unnecessary exposure. (Be warned) when cleaning your said firearm, be aware if the chamber is cleared and safe to store, accidental use is the most important step for insuring your firearm is not broken or anything outside of the area.{{citation needed|date=June 2024}}