Reference Source

Sulfur Dioxide

For Sulfur Dioxide, cas no. is 7446-09-5; epcra tpq (lbs) is 500; epcra rq (lbs) is 500, verified against its source on 2026-08-05.

Substance
Sulfur Dioxide
CAS No.
7446-09-5
EPCRA TPQ (lbs)
500
EPCRA RQ (lbs)
500
Sourceecfr.gov
Verified2026-08-05
Review by2027-08-05
DatasetUS federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA)

What the source says

500 | 7446-09-5 | Sulfur Dioxide |

— ecfr.gov, retrieved 2026-08-05

Source

Last verified against source: 2026-08-05. Scheduled for re-check by: 2027-08-05. This page as Markdown · OKF bundle · full dataset as JSON.