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verified"},"section":null,"page":null,"quote":null,"note":"douce_long_terme: the summary table prints 'Equation'; the expression is printed on https://ccme.ca/en/chemical/139: The CWQG for nickel is related to water hardness (as CaCO3): / When the water hardness is 0 to ≤ 60 mg/L, the CWQG is 25 µg/L / At hardness > 60 to ≤ 180 mg/L the CWQG is calculated using this equation (see calculator below) / CWQG (µg/L) = e^{0.76[ln(hardness)]+1.06} / At hardness >180 mg/L, the CWQG is 150 µg/L / If the hardness is unknown, the CWQG is 25 µg/L / The online calculator (below) will return the correct value over the entire range of hardness.","table":"eau_vie_aquatique","column":"douce_long_terme"}},{"id":"22b225bf014f58cb","parameter":"Nickel","value":"0.25 mg/L","value_num":0.25,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7440-02-0","place":["CA"],"conditions":["cites is MDMER","route 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