{"query":{"parameter":"chloromethane","place":"CA-NS","medium":null,"statistic":null,"kind":null},"searched":{"places":["CA-NS","CA"],"parameter_keys":["cas:74-87-3","cas:56-23-5","cas:5039-78-1"],"names_matched":[["chloromethane","cas:74-87-3"],["carbon tetrachloride tetra chloromethane","cas:56-23-5"],["ethanaminium n n n trimethyl 2 2 methyl 1 oxo 2 propenyl oxy chloride","cas:5039-78-1","methyl chloride"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":8,"names":["Tetrachloromethane","Carbon Tetrachloride (Tetrachloromethane)","Carbon tetrachloride"],"says":"8 rows share a parameter key with a longer name holding \"chloromethane\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"chloromethane\" does not name (another substance, whatever words its name holds): not sent. Ask for one by its name or CAS number."}},"total":2,"offset":0,"returned":2,"next_offset":null,"rows":[{"id":"2961249178f70769","parameter":"Chloromethane","value":"700","value_num":700,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:74-87-3","place":["CA-NS"],"conditions":["receiving_water is freshwater","a site's surface water, or groundwater within 10 m of a surface water body, assessed under the Contaminated Sites Regulations (Tier I: the generic standard; a Tier II pathway-specific standard or a site-specific risk assessment may replace it)"],"cite":{"instrument":"ca_ns_tier1_eqs_surface_water","title":"Nova Scotia Tier I Environmental Quality Standards (EQS) for Surface Water and Groundwater Discharging to Surface Water — Table 3, surface water columns","issuer":"Nova Scotia Environment and Climate Change (Contaminated Sites Regulations, Tier I EQS)","edition":"Revision September 30, 2021 (linked from the Contaminated Sites protocols page, fetched 2026-10-09)","source_url":"https://novascotia.ca/nse/contaminatedsites/docs/Table_3_-_Nova_Scotia_Tier_I_Environmental_Quality_Standards_EQS_for_Surface_Water_and_Groundwater_Discharging_to_Surface_Water.pdf","source_sha256":"cff66750079c1998ad86f5ad70089705f7824849c0b5a016eb5253447301a875","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 3, surface water, fresh water","page":3,"quote":null}},{"id":"ebf84fd553a7ed32","parameter":"Chloromethane","value":"6400","value_num":6400,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:74-87-3","place":["CA-NS"],"conditions":["receiving_water is marine","a site's surface water, or groundwater within 10 m of a surface water body, assessed under the Contaminated Sites Regulations (Tier I: the generic standard; a Tier II pathway-specific standard or a site-specific risk assessment may replace it)"],"cite":{"instrument":"ca_ns_tier1_eqs_surface_water","title":"Nova Scotia Tier I Environmental Quality Standards (EQS) for Surface Water and Groundwater Discharging to Surface Water — Table 3, surface water columns","issuer":"Nova Scotia Environment and Climate Change (Contaminated Sites Regulations, Tier I EQS)","edition":"Revision September 30, 2021 (linked from the Contaminated Sites protocols page, fetched 2026-10-09)","source_url":"https://novascotia.ca/nse/contaminatedsites/docs/Table_3_-_Nova_Scotia_Tier_I_Environmental_Quality_Standards_EQS_for_Surface_Water_and_Groundwater_Discharging_to_Surface_Water.pdf","source_sha256":"cff66750079c1998ad86f5ad70089705f7824849c0b5a016eb5253447301a875","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 3, surface water, marine water","page":3,"quote":null}}],"next":[{"tool":"check_values","says":"Has your user measured this? check_values sets each of their results beside every row held here, with a verdict and the row's cite.","arguments":{"place":"CA-NS"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"chloromethane\", value, unit}, ...], any other parameters too."},"post":"/api/v1/check"},{"tool":"read_certificate","says":"Has your user a laboratory certificate? read_certificate reads every row it prints, each with its page, and checks them against these limits.","arguments":{"place":"CA-NS"},"needs":{"content_base64":"The laboratory's certificate (PDF) or its XLSX, XLS or CSV export, as base64; or file_url, a public https address of it."},"post":"/api/v1/certificate"}]}