Coke oven emissions (Cancer)

Coke oven emissions is listed under California Proposition 65 for the Cancer endpoint. Its established safe harbor level is 0.01 µg/day as a NSRL, determined for exposure primarily via the inhalation route. CAS registry number: N/A.

Safe Harbor Level

What this level means

A NSRL is a daily exposure level for Coke oven emissions that — at or below 0.01 µg/day per day — does not require a Proposition 65 warning because it poses no significant risk for the Cancer endpoint. This is the No Significant Risk Level (NSRL) — the daily intake for the cancer endpoint.

• Level: 0.01 µg/day per day (NSRL).
• Endpoint: Cancer.
• Route: exposure is assessed primarily through the inhalation route.
• CAS: N/A.

Businesses that expose consumers to more than the safe harbor level for Coke oven emissions must provide a clear and reasonable Prop 65 warning. Compliance is assessed against the applicable OEHHA safe harbor level above; where no safe harbor level is established, an exposure assessment may be required.

Compliance notes

1. Compare the daily exposure to the NSRL of 0.01 µg/day.
2. If exposure exceeds the level, a Prop 65 warning is generally required.
3. Confirm the current OEHHA listing and any updates to the level before relying on it — safe harbor levels are amended periodically.

Frequently Asked Questions

What is the Prop 65 safe harbor level for Coke oven emissions?

0.01 µg/day per day (NSRL).

What is the CAS number for Coke oven emissions?

N/A.

What endpoint is Coke oven emissions listed for?

Cancer.

What is the primary route of exposure for Coke oven emissions?

The inhalation route.

What is the difference between an NSRL and a MADL?

An NSRL (No Significant Risk Level) applies to cancer endpoints; a MADL (Maximum Allowable Dose Level) applies to reproductive and developmental endpoints.