{"data":{"id":"us-va/9vac5-40-6590","jurisdiction":"us-va","citation":"9VAC5-40-6590","heading":"Standard for dioxins/furans","body":"A. No owner or other person shall cause or permit to be discharged into the atmosphere from any Class I unit any dioxin/furan (total mass basis) emissions in excess of the following.\n\n1. For units that do not use an electrostatic precipitator-based emission control system: 30 nanograms per dry standard cubic meter, measured at 7.0% oxygen, three-run average (minimum run duration of four hours).\n\n2. For units that use electrostatic precipitator-based emission control system: 60 nanograms per dry standard cubic meter, measured at 7.0% oxygen, three-run average (minimum run duration of four hours).\n\nB. No owner or other person shall cause or permit to be discharged into the atmosphere from any Class II unit any dioxin/furan emissions (total mass basis) in excess of 125 nanograms per dry standard cubic meter, measured at 7.0% oxygen, three-run average (minimum run duration of four hours).","path":["Title 9. Environment","Agency 5. State Air Pollution Control Board","Chapter 40. Existing Stationary Sources","Part II. Emission Standards","Article 46. Emission Standards for Small Municipal Waste Combustors (Rule 4-46)"],"source_url":"https://law.lis.virginia.gov/admincode/title9/agency5/chapter40/section6590/","current_through":"2026 Regular Session (effective July 1, 2026)","vintage":"","retrieved_at":"2026-09-14T04:48:15Z","sha256":"b5bd6a70e795ac47e37baeb741010941603c32b2844859b1452e370cc9a58e19","source_id":"us-va-vac","stale":false,"prev":"us-va/9vac5-40-6580","next":"us-va/9vac5-40-6600"},"notice":"GroundRules: Original legal text. Not legal advice."}