Editing Miscarriage (section)

===Chemicals and occupational exposure===
Chemical and [[occupational exposure]]s may have some effect on pregnancy outcomes.<ref>{{cite journal | vauthors = Snijder CA, Roeleveld N, Te Velde E, Steegers EA, Raat H, Hofman A, Jaddoe VW, Burdorf A | title = Occupational exposure to chemicals and fetal growth: the Generation R Study | journal = Human Reproduction | volume = 27 | issue = 3 | pages = 910–20 | date = March 2012 | pmid = 22215632 | pmc = 3279127 | doi = 10.1093/humrep/der437 }}</ref> A cause-and-effect relationship can rarely be established. Those chemicals that are implicated in increasing the risk for miscarriage are [[DDT]], [[lead]],<ref>{{cite journal | vauthors = Krieg SA, Shahine LK, Lathi RB | title = Environmental exposure to endocrine-disrupting chemicals and miscarriage | journal = Fertility and Sterility | volume = 106 | issue = 4 | pages = 941–7 | date = September 2016 | pmid = 27473347 | doi = 10.1016/j.fertnstert.2016.06.043 | doi-access = free }}</ref> [[formaldehyde]], [[arsenic]], [[benzene]] and [[ethylene oxide]]. [[Video display terminal]]s and ultrasound have not been found to affect the rates of miscarriage. In dental offices where [[nitrous oxide]] is used with the absence of anaesthetic gas scavenging equipment, there is a greater risk of miscarriage. For women who work with cytotoxic antineoplastic chemotherapeutic agents, there is a small increased risk of miscarriage. No increased risk for [[cosmetologist]]s has been found.{{sfn|Hoffman|page=272}}