Field observatory · high-risk grid means

MethaneGuard Sentinel

Static preview · generated 2026-10-12 05:55 UTC

sensor review · methane hazard references

A compact methane reading desk for city sites, hazard references, and field review.

Selected sites

0active reading points

Methane reading

0.0ppm · current mean

NIOSH IDLH

0%reference gap

LEL fraction

0%of 50,000 ppm

Data mode

DEMOstatic field desk

Monitoring station

Virtual monitoring station

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City methane observation and hazard review

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Reference desk · static mode

Demo dashboard: built-in sensor readings are illustrative, not live measurements. Methane can displace oxygen and create a fire or explosion hazard. The 5,000 ppm NIOSH IDLH value is not a safe-exposure limit; use certified gas and oxygen monitors.

Observation map

Site readings

SiteLatitudeLongitudeMethane (ppm)Status

Sources & references

Scientific and official references

The hazard thresholds and climate context in this dashboard follow recognised occupational-safety and climate-science sources. These are the scientific and official references behind the NIOSH IDLH value, the methane lower explosive limit, and the emissions picture.

NIOSH Pocket Guide to Chemical Hazards US Centers for Disease Control and Prevention (NIOSH) Methane (CAS 74-82-8) exposure facts and the 5,000 ppm immediately dangerous to life or health (IDLH) reference used by the dashboard. NIOSH/OSHA Hazard Alert (OSHA 3843) US NIOSH and OSHA Methane hazard alert covering fire, explosion, and oxygen-displacement risk in confined spaces and the 5% by volume lower explosive limit. AR6 WG1 Chapter 6: Short-lived Climate Forcers Intergovernmental Panel on Climate Change Assessment of methane as a short-lived climate forcer, its warming effect, and global emission budgets. Global Methane Assessment UN Environment Programme & Climate & Clean Air Coalition Benefits and costs of mitigating methane emissions, including the 45% reduction pathway and its air-quality and health co-benefits. Global Methane Tracker 2025 International Energy Agency Annual tracking of methane emissions and abatement options across the energy sector, including oil, gas, and coal. Methane Emissions US Environmental Protection Agency Sources and global warming potential of methane, and the role of monitoring in reducing emissions. Coalbed Methane Outreach Program (CMOP) US Environmental Protection Agency Guidance on coal-mine methane recovery and use, a common source of methane hazards at industrial sites.