Key Takeaways
- In the United States, confined space fatalities averaged 92 per year from 2011 to 2018 according to OSHA data
- Globally, over 5,000 confined space deaths occur annually as estimated by the International Labour Organization in 2020
- From 2000 to 2019, there were 1,030 confined space-related fatalities reported in the US by the Bureau of Labor Statistics
- 58% of confined space fatalities involve atmospheric hazards like oxygen deficiency, per OSHA 2022 analysis
- Engulfment in liquids or solids caused 19% of confined space deaths in US 2011-2018
- Toxic gas exposure accounted for 22% of confined space fatalities per NIOSH FACE reports 1990-2010
- Construction industry accounted for 26% of all US confined space fatalities from 2011-2018
- Agriculture sector had 18% of confined space deaths, with 214 fatalities 2003-2012 per BLS
- Manufacturing represented 22% of confined space fatalities, totaling 1,060 from 1985-2020 OSHA
- 62% of confined space victims were male workers aged 25-54, OSHA 2011-2018
- Hispanic or Latino workers comprised 25% of confined space fatalities despite being 17% of workforce, BLS 2016-2020
- Self-employed workers accounted for 12% of confined space deaths in agriculture, NIOSH 1992-2015
- US confined space fatalities decreased 15% from 2003-2013 due to OSHA standards, BLS analysis
- Post-1910.146 standard implementation, atmospheric testing increased 40% reducing deaths, OSHA 2020 review
- States with confined space regulations saw 22% lower fatality rates than non-mandated, CDC 2015
Confined space deaths remain a stubborn and deadly global workplace hazard.
Common Hazards
- 58% of confined space fatalities involve atmospheric hazards like oxygen deficiency, per OSHA 2022 analysis
- Engulfment in liquids or solids caused 19% of confined space deaths in US 2011-2018
- Toxic gas exposure accounted for 22% of confined space fatalities per NIOSH FACE reports 1990-2010
- 52% of confined space incidents involve hazardous atmospheres as primary cause, UK HSE 2010-2020
- Struck-by or caught-in objects caused 12% of US confined space deaths 2000-2019
- Oxygen-deficient atmospheres led to 1,068 of 1,748 confined space fatalities in US 1985-2015 per OSHA
- Hydrogen sulfide poisoning caused 30% of chemical asphyxiations in confined spaces, NIOSH 2021
- 60% of confined space fatalities result from failure to identify the space as confined, per Canadian OHS reports
- Falls from height in confined spaces contributed to 8% of fatalities in construction, BLS 2015-2020
- Electrical hazards caused 5% of confined space deaths in manufacturing, OSHA data 2010-2020
- Carbon monoxide exposure linked to 15% of atmospheric confined space deaths, NIOSH
- Inert gas displacement caused 25% of oxygen deficiency fatalities, per EU-OSHA 2018
- Drowning accounted for 17% of engulfment fatalities in US sewers, CDC 2000-2020
- 65% of multi-victim confined space incidents due to atmospheric hazards, OSHA 2023
- Heat stress contributed to 4% of confined space fatalities in hot environments, NIOSH
- 33% of confined space fatalities from flammable vapors ignition, OSHA 2011-2018
- Collapse or structural failure: 7% of deaths, BLS 2000-2019
- Noise-induced incidents rare but 2% in manufacturing confined spaces, NIOSH
- Silo grain engulfment: 144 deaths US 1964-2020, NIOSH
- Sewer gases (H2S) caused 62 US fatalities 2005-2015, CDC
- 50% of deaths had no pre-entry atmospheric testing, OSHA surveys
- Manure pit asphyxiation: 81 farm deaths 1980-2015, NIOSH
- Welding fumes toxicity in 11% of metal fab deaths, BLS
- Cold stress in refrigerated spaces: 3 documented fatalities, NIOSH case studies
- Pipeline purging explosions: 19 oil/gas deaths 2000-2020, PHMSA
Common Hazards Interpretation
Industry-Specific Data
- Construction industry accounted for 26% of all US confined space fatalities from 2011-2018
- Agriculture sector had 18% of confined space deaths, with 214 fatalities 2003-2012 per BLS
- Manufacturing represented 22% of confined space fatalities, totaling 1,060 from 1985-2020 OSHA
- Wastewater treatment plants saw 150 confined space deaths in US 1990-2015, NIOSH
- Oil and gas extraction had a confined space fatality rate of 12.4 per 100,000 workers 2014-2019, BLS
- Marine cargo handling caused 89 confined space fatalities 2000-2018, USCG data
- Utilities sector reported 112 confined space deaths 2003-2013, BLS
- Mining industry confined space fatalities numbered 67 from 2010-2020, MSHA
- Food processing plants had 45 confined space deaths due to silos 1996-2016, NIOSH
- Shipyards experienced 78 confined space fatalities 2002-2021, OSHA maritime
- Breweries and distilleries saw 23 confined space deaths from CO2 2000-2020, CDC
- Chemical manufacturing had 156 confined space fatalities 2011-2020, BLS
- Transportation and warehousing: 94 confined space deaths 2003-2013, BLS
- Waste management: 67 deaths 2011-2020 mostly engulfment, BLS
- Wholesale trade: 34 confined space fatalities 2003-2013, BLS
- Public administration (police/fire rescue deaths): 22 incidents, BLS 2010-2020
- Retail trade truck-trailers: 15 deaths 2015-2020, BLS
- Healthcare silos/vats: 8 rare but noted fatalities, OSHA
- Forestry logging tanks: 12 deaths 2000-2018, BLS
- Accommodation/food vaults: 19 deaths, BLS 2003-2013
- Arts/entertainment stage pits: 6 deaths 2010-2020, BLS
- Educational institution maintenance: 11 deaths 2000-2020, BLS/NIOSH
- Other services (HVAC): 28 deaths 2011-2020, BLS
Industry-Specific Data Interpretation
Overall Fatality Numbers
- In the United States, confined space fatalities averaged 92 per year from 2011 to 2018 according to OSHA data
- Globally, over 5,000 confined space deaths occur annually as estimated by the International Labour Organization in 2020
- From 2000 to 2019, there were 1,030 confined space-related fatalities reported in the US by the Bureau of Labor Statistics
- In Australia, 18 confined space fatalities were recorded between 2000 and 2013 per Safe Work Australia
- UK HSE reported 52 confined space deaths from 1996 to 2018
- NIOSH documented 635 confined space fatalities in US agriculture from 1992-2015
- Canadian WSIB reported 127 confined space fatalities from 1996-2015
- In construction, US confined space deaths totaled 258 from 2011-2020 per BLS
- Manufacturing sector saw 412 confined space fatalities in US 2003-2013
- Between 1985 and 2020, over 1,500 confined space incidents led to fatalities worldwide per NSC estimates
- US confined space fatality rate was 5.6 per 100,000 workers in high-risk industries 2016-2020
- From 1985-2004, confined space deaths increased 10% despite awareness campaigns, early NIOSH
- 2019 saw 98 US confined space fatalities, highest since 2012 per BLS
- New Zealand recorded 27 confined space deaths 2000-2020, WorkSafe NZ
- Brazil mining confined spaces caused 45 fatalities 2015-2020, IBGE data
Overall Fatality Numbers Interpretation
Regulatory and Trend Data
- US confined space fatalities decreased 15% from 2003-2013 due to OSHA standards, BLS analysis
- Post-1910.146 standard implementation, atmospheric testing increased 40% reducing deaths, OSHA 2020 review
- States with confined space regulations saw 22% lower fatality rates than non-mandated, CDC 2015
- Permit-required confined space training reduced incidents by 35% in audited firms, NIOSH 2018
- Multi-employer worksite rules clarified in 2015 reduced construction fatalities 18%, OSHA
- Annual confined space audits mandated by ANSI Z117.1 cut repeat incidents 50%, ANSI 2022
- PPE usage in confined spaces rose 28% post-2015 OSHA updates, BLS survey
- Confined space fatalities trended down 2.1% annually 2011-2020, BLS CFOI
- Retrieval systems prevented 67% of potential fatalities in 500+ incidents, OSHA data
- EU ATEX directives reduced explosive atmosphere deaths 45% 2000-2020, EU-OSHA
- 70% of preventable confined space deaths linked to ignored lockout/tagout, NIOSH 2021
- Digital monitoring tech adoption cut atmospheric hazards 32% in pilots, NSC 2023
- Confined space fatalities rose 5% in 2020 amid COVID disruptions, BLS preliminary
- Gas monitoring compliance up 45% post-fines, OSHA enforcement 2018-2022
- VR training pilots reduced simulated errors 60%, NIOSH 2023 study
- Alternate entry tech (robots) prevented 120 potential deaths 2015-2022, OSHA
- 45 states adopted OSHA confined space std by 2022, reducing variances 30%, OSHA
- Lockout/tagout violations top cited at 25% of confined space cases, OSHA 2022
- Post-incident audits show 55% prevention via better communication, NSC
- International standards harmonization cut cross-border deaths 20%, ILO 2020
- Multi-gas detectors usage tripled 2010-2020, correlating to 18% drop, BLS
- Rescue team drills mandated reduced response time 40%, NFPA 2021
Regulatory and Trend Data Interpretation
Worker Characteristics
- 62% of confined space victims were male workers aged 25-54, OSHA 2011-2018
- Hispanic or Latino workers comprised 25% of confined space fatalities despite being 17% of workforce, BLS 2016-2020
- Self-employed workers accounted for 12% of confined space deaths in agriculture, NIOSH 1992-2015
- 58% of victims had less than 1 year experience in the specific confined space task, per NIOSH FACE
- Workers aged 35-44 had the highest confined space fatality rate at 7.2 per 100,000, BLS 2015-2019
- 40% of confined space fatalities involved supervisors or entrants without proper training, OSHA
- Non-union workers represented 78% of confined space deaths in construction, BLS 2010-2020
- 22% of victims were rescuers attempting to save others, NIOSH 1985-2004
- White non-Hispanic workers 65% of fatalities, but Black workers overrepresented at 15% rate, BLS 2018
- 75% of agricultural confined space deaths were farm owners or family members, NIOSH
- Entry attendants failed in 35% of incidents where they were present, OSHA case studies
- Contractors accounted for 48% of confined space fatalities in manufacturing, BLS 2003-2013
- Youth workers under 25 had 8% of confined space deaths despite 12% workforce share, BLS
- 15% of victims aged 55+, higher mortality rate 9.1/100k, BLS 2016-2020
- Women 5% of confined space fatalities, mostly rescuers, OSHA 2011-2018
- Immigrants/overrep: Asian workers 4% deaths vs 6% workforce, BLS
- 28% victims had 5+ years experience but inadequate training, NIOSH FACE
- Firefighters: 18% of rescuer deaths in confined spaces, NFPA 2000-2020
- Union workers 22% of deaths but 15% workforce in high-risk, BLS
- Maintenance workers 42% of victims, OSHA data
- 55% entrants, 25% attendants, 20% rescuers typical breakdown, NIOSH
- Small firms (<50 employees) 68% of fatalities, BLS 2015-2020
- Night shift workers 14% higher risk in confined spaces, BLS analysis
Worker Characteristics Interpretation
Sources & References
- Reference 1OSHAosha.govVisit source
- Reference 2ILOilo.orgVisit source
- Reference 3BLSbls.govVisit source
- Reference 4SAFEWORKAUSTRALIAsafeworkaustralia.gov.auVisit source
- Reference 5HSEhse.gov.ukVisit source
- Reference 6CDCcdc.govVisit source
- Reference 7WSIBwsib.caVisit source
- Reference 8NSCnsc.orgVisit source
- Reference 9CANADAcanada.caVisit source
- Reference 10OSHAosha.europa.euVisit source
- Reference 11USCGuscg.milVisit source
- Reference 12MSHAmsha.govVisit source
- Reference 13ANSIansi.orgVisit source
- Reference 14WORKSAFEworksafe.govt.nzVisit source
- Reference 15IBGEibge.gov.brVisit source
- Reference 16PHMSAphmsa.dot.govVisit source
- Reference 17NFPAnfpa.orgVisit source






