{"query":{"parameter":"hydrogen sulfide","place":"US-SD","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-SD","US"],"parameter_keys":["cas:7783-06-4","cas:115408-95-2","name:undisassociated hydrogen sulfide","cas:3547-33-9","cas:538-74-9","cas:97-74-5","cas:463-58-1","cas:592-88-1","cas:544-40-1","cas:352-93-2","cas:75-18-3","cas:111-47-7","cas:3698-89-3","cas:2469-45-6","cas:3698-94-0","cas:420-12-2","cas:6294-31-1","cas:625-80-9","cas:2690-08-6","cas:7446-34-6","cas:18496-25-8","name:sulfide, easily liberated","name:sulfides, total","name:hydrogen sulphide","name:sulfure d’hydrogene"],"names_matched":[["hydrogen sulfide","cas:7783-06-4"],["cyclohexene 4 ethenyl reaction products with hydrogen sulfide h2s","cas:115408-95-2"],["undisassociated hydrogen sulfide","name:undisassociated hydrogen sulfide"],["2 hydroxyethyl octyl sulfide","cas:3547-33-9","sulfide"],["benzyl sulfide","cas:538-74-9","sulfide"],["bis dimethylthiocarbamoyl sulfide","cas:97-74-5","sulfide"],["carbonyl sulfide","cas:463-58-1","sulfide"],["diallyl sulfide","cas:592-88-1","sulfide"],["dibenzyl sulfide","cas:538-74-9","sulfide"],["dibutyl sulfide","cas:544-40-1","sulfide"],["diethyl sulfide","cas:352-93-2","sulfide"],["dimethyl sulfide","cas:75-18-3","sulfide"],["dipropyl sulfide","cas:111-47-7","sulfide"],["dodecyl methyl sulfide","cas:3698-89-3","sulfide"],["dodecyl sulfide","cas:2469-45-6","sulfide"],["ethyl n octyl sulfide","cas:3698-94-0","sulfide"],["ethylene sulfide","cas:420-12-2","sulfide"],["hexyl sulfide","cas:6294-31-1","sulfide"],["isopropyl sulfide","cas:625-80-9","sulfide"],["octyl sulfide","cas:2690-08-6","sulfide"],["selenium sulfide","cas:7446-34-6","sulfide"],["sulfide","cas:18496-25-8","sulfide"],["sulfide easily liberated","name:sulfide, easily liberated","sulfide"],["diallyl sulfides","cas:592-88-1","sulfides"],["sulfides total","name:sulfides, total","sulfides"],["hydrogen sulphide","name:hydrogen sulphide","hydrogen sulphide"],["sulfure d hydrogene","name:sulfure d’hydrogene","sulfure d hydrogene"],["sulfure d hydrogene h2s","name:sulfure d’hydrogene","sulfure d hydrogene"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order; rows for a marine receiving water after the rest, as none of the place's own rows names a marine, salt, estuarine, coastal or ocean water","not_sent":{"rows":12,"names":["Carbonyl Sulfide","Dimethyl Sulfide","Selenium Sulfide","Sulfide"],"says":"12 rows share a parameter key with a longer name holding \"hydrogen sulfide\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"hydrogen sulfide\" does not name (another substance, whatever words its name holds): not sent. Ask for one by its name or CAS number."}},"total":104,"offset":0,"returned":50,"next_offset":50,"rows":[{"id":"9a222b03b314a6da","parameter":"Undisassociated hydrogen sulfide","value":"< 0.002","value_num":0.002,"unit":"mg/L","statistic":"daily_max","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:undisassociated hydrogen sulfide","place":["US-SD"],"conditions":["receiving_water is freshwater","waters assigned the beneficial use of coldwater permanent fish life propagation waters (a water's uses: chapters 74:51:02 lakes and 74:51:03 streams)"],"cite":{"instrument":"us_sd_wqs","title":"South Dakota Surface Water Quality Standards (ARSD 74:51:01): criteria by beneficial use, Appendix B toxic pollutant criteria, radionuclide and dissolved gas limits","issuer":"State of South Dakota, Water Management Board (Department of Agriculture and Natural Resources)","edition":"ARSD chapter 74:51:01, Surface Water Quality, effective August 17, 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