{"query":{"parameter":"chlorine dioxide","place":"US-OH","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-OH","US"],"parameter_keys":["cas:10049-04-4"],"names_matched":[["chlorine dioxide","cas:10049-04-4"]],"match":"exact","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":7,"offset":0,"returned":7,"next_offset":null,"rows":[{"id":"c745d91b105b79b3","parameter":"Chlorine dioxide","value":"800a","value_num":800,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:10049-04-4","place":["US-OH"],"conditions":["receiving_water is freshwater","water bodies within five hundred yards of drinking water intakes (OAC 3745-1-33(A)(1))","water bodies in the Ohio river drainage basin"],"cite":{"instrument":"us_oh_wqs","title":"Ohio Administrative Code Chapter 3745-1 Water Quality Standards: statewide aquatic life (Table 35-1, hardness and pH equations 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2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"table":"sols","column":"industriel"}},{"id":"d6a29660aa4b7ae7","parameter":"Chlorine Dioxide","value":"0.42","value_num":0.42,"unit":"µg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:10049-04-4","place":["US"],"conditions":["Tap Water (ug/L): Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) November 2024"],"cite":{"instrument":"us_rsl_tapwater","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Tap Water","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 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