Amostra de água do rio para análise. Mão na luva segurando um conceito de teste tube.ecology - Banco de fotos e imagens

Sample water from the river for analysis. Hand in glove holding a test tube.ecology concept

A water sample from the river. Hand in glove collects water in a test tube. ecology concept

A water sample from the river. Hand in glove collects water in a test tube. ecology concept

A water sample from the river. Hand in glove collects water in a test tube. ecology concept

A water sample from the river. Hand in glove collects water in a test tube. ecology concept

Sample water from the river for analysis. Hand in glove holding a test tube.ecology concept

Closeup of hand in medical glove is about to take sample of green algae in water. research of ecological problems. environment, nature, save earth

Sample water from the river for analysis. Hand in glove holding a test tube.ecology concept

Making sushi and rolls at home. Close Up of a man's hand

Sample water from the river for analysis. Hand in glove holding a test tube.ecology concept

A water sample from the river. Hand in glove collects water in a test tube. ecology concept

A water sample from the river. Hand in glove collects water in a test tube. ecology concept

A water sample from the river. Hand in glove collects water in a test tube. ecology concept

A water sample from the river. Hand in glove collects water in a test tube. ecology concept

Sample water from the river for analysis. Hand in glove holding a test tube.ecology concept

Sample water from the river for analysis. Hand in glove holding a test tube.ecology concept