Odběr vzorků z volné vody. Vědec nebo biolog odebere vzorek vody. Vzorek vody v chemické zkumavce s pipetou. - Stock fotografie a obrázky

A man in a protective suit holds a Petri dish with a sample for plants and looks at the reaction in it after adding the reagent, top view

The scientist, in a protective suit and mask, took a plant with tweezers, for a sample and puts it in a Petri dish, close-up

Scientist in a protective suit and mask, collects biomaterials from the water, for analysis, in a Petri dish

Environmental biologist in a protective suit and mask examines water from the river for viruses

Woman with flask for expertise. Environmental pollution concept

Water pollution concept. Woman scientist takes a water sample from polluted pond.

Woman collects water in a test tube. Ecology and environmental pollution concept.

Woman with hands in gloves holds a glass with a sample of water. Sampling from open water.

Sampling from open water. A scientist or biologist takes a water sample near an industrial plant. Water sample in a chemical test tube with a pipette.

Sampling from open water. A scientist or biologist takes a water sample near an industrial plant. Water sample in a chemical test tube with a pipette.

Sampling from open water. A scientist or biologist takes a water sample. Water sample in a chemical test tube with a pipette.

Sampling from open water. A scientist or biologist takes a water sample. Water sample in a chemical test tube with a pipette.

Sampling from open water. A scientist or biologist takes a water sample near an industrial plant. Water sample in a chemical test tube with a pipette.

Sampling from open water. A scientist or biologist takes a water sample. Water sample in a chemical test tube with a pipette.