Question

City water management is analyzing water samples from the local river for water pollutants that could be toxic to humans if found in drinking water. Their collection data is below. Samples Location Nitrates Carbamates 1 Two miles downriver from drinking water uptake facility 12 mg/L 0.06 mg/L 2 One mile downriver from drinking water uptake facility 9 mg/L 2 mg/L 3 One mile upriver from drinking water uptake facility 8 mg/L 0.04 mg/L 4 Two miles upriver from drinking water uptake facility 10 mg/L 0.05 mg/L Toxic levels: Nitrates ≥ 10 mg/L; Carbamates ≥ 0.04 mg/L. *≥ denotes greater than or equal to. Which sample location(s) could possibly lead to contamination of drinking water?
Samples 1, 2, 4

Samples 1 and 4

Samples 3 and 4

Only sample 4

Answer 1

Answer:

I believe the answer would be Samples 1 and 4

Explanation:

The highest amount of Nitrates that your body allows you to drink is about 10mg/L and sample 1 and 4 have an equaled amount or higher than 10mg/L.

I hope this helped!