Madawaska at Ottawa rivers : Mouth of Madawaska River

Arnprior, Ontario, Canada

Observed by
Pat Tait
pH (0-14) What's this? 7.2
Dissolved oxygen mg/L What's this? 3.4
Secchi depth m What's this? 1.3
Nitrates mg/L What's this? <5
Nitrites mg/L What's this? <0.5
Air temperature °C What's this? 21.4
Water temperature °C What's this? 20.1

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Notes

high water but not as noticable as Bonnechere; possible malfunction of DO probe (3.4 is uncharacterisically low); will try a re-calibrate.