Benzene: Regulation

A proven carcinogen in everyday supply chains

What this tab covers How it is regulated and what could disrupt supply: hazard classification, rules in the EU, US and India, anti-dumping duties and other trade measures, and supply-risk notes.

Hazards

Classification	UN number	Key risks
Flammable liquid cat 2; carcinogenicity cat 1A; germ cell mutagenicity cat 1B; STOT repeated exposure cat 1; aspiration hazard cat 1	UN1114	Chronic exposure causes leukaemia and bone-marrow damage. Vapour is heavier than air and highly flammable.

Main rules

Where	Rule	Effect
EU	Directive (EU) 2022/431 occupational limit of 0.2 ppm from 5 April 2026; REACH registration; Seveso III	Tighter workplace controls at derivative and refinery sites (indicative)
EU	Fuel Quality Directive 98/70/EC: benzene in petrol at most 1% by volume	Caps benzene in gasoline pool (indicative)
US	OSHA permissible exposure limit 1 ppm; EPA gasoline benzene average 0.62% by volume	Drives refinery benzene removal (indicative)

India

Rule	Effect
MSIHC Rules 1989 (listed hazardous chemical); Petroleum Rules 2002 for storage	Site safety reports and on-site emergency plans required (indicative)
BS-VI petrol specification (IS 2796): benzene at most 1% by volume	Limits benzene in fuel (indicative)

Trade measures

No major anti-dumping measures on benzene itself found in sources reached; trade measures sit on derivatives (phenol, caprolactam investigations in India, 2025-2026).

Supply risk

Low structural risk because supply is spread across many refineries, but Gulf exports and naphtha supply proved vulnerable to the 2026 Hormuz disruption. Not on critical-mineral lists.