Sponsored photos by

Glasses of dirty and pure water before and after filtration isolated on blue background. Drinking water purification with filters concept. Realistic vector illustration
Stressed trekker alone suffering belly ache after drinking river water in the mountain
pollution from the exhaust of cars in the city in the winter. Smoke from cars on a cold winter day
Hand woman picking up plastic bottle cleaning on the beach , volunteer concept
White smoke or fog isolated on black background.

Free stock photoscontamination (155)