He saidnitrate pollution was already measured by a modelling system called Overseer.
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The report saidnitrate levels were typically low and all were better than drinking water standards.
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Canterbury's medical officer of health, Alistair Humphrey, saidnitrates were a small but significant risk to small babies.
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He saidnitrate management had not been a priority for the regional council and needs to be addressed as soon as possible.
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Forest and Bird saidnitrate pollution levels in Canterbury's drinking water were rising and the risk-maps the regional council relies on were out-of-date.
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Last month, Forest and Bird saidnitrate pollution levels in Canterbury's drinking water were rising and the risk-maps the regional council relied on were out-of-date.