News tagged with concentration

NZ toxic contaminant levels halved, study shows

Blood samples taken by Massey researchers to measure the concentrations of toxic environmental contaminants, called persistent organic pollutants (or POPs), show their levels halved in the past 15 years among New Zealand's ...

Nov 21, 2013
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When flying leads to stomach pain

Patients with a chronic intestinal inflammation often experience bouts of inflammation after a journey. The main cause of this is not the stress of travelling, but the lack of oxygen experienced in an aircraft or during high ...

Sep 16, 2013
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