19/100

Air

Secondhand Cigarette Smoke

Severe burden — Secondhand Cigarette Smoke is a major avoidable exposure worth cutting first.

Living or working around indoor smoking.

The breakdown

Each driver rated 0 (none) to 10 (worst)

Chemical hazard
10
Everyday exposure
8
Persistence
3

Evidence strength: strong · Detox Score = 100 − hazard×4.6 − exposure×3.4 − persistence×2.6, clamped 1–100.

What this means for you

A Detox Score of 19 places secondhand cigarette smoke in the Severe band. The chemical-hazard rating is what drives the score down. A confirmed human carcinogen with no safe level of exposure. Keeping all indoor spaces smoke-free is non-negotiable for detox load.

Cleaner swap → A strictly smoke-free indoor environment.
See where your whole exposure load is highest — free Exposure Score →

Frequently asked questions

Is secondhand cigarette smoke a toxic exposure?

Secondhand Cigarette Smoke has a Detox Score of 19 out of 100 (Severe burden), which means it is a major avoidable exposure worth cutting first. A confirmed human carcinogen with no safe level of exposure. Keeping all indoor spaces smoke-free is non-negotiable for detox load.

What is a safer alternative to secondhand cigarette smoke?

A lower-exposure swap for secondhand cigarette smoke is: A strictly smoke-free indoor environment. A confirmed human carcinogen with no safe level of exposure. Keeping all indoor spaces smoke-free is non-negotiable for detox load.

Lower-exposure choices

86
HEPA-Filtered Indoor AirMinimal · Air

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