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Water sample. Checking the condition of rivers or natural lakes. Water test for chemicals, bacteria, harmful substances, radiation. Collection of material in a test tube for further research.

Water sample. Checking the condition of rivers or natural lakes. Water test for chemicals, bacteria, harmful substances, radiation. Collection of material in a test tube for further research.

Water sample. Checking the condition of rivers or natural lakes. Water test for chemicals, bacteria, harmful substances, radiation. Collection of material in a test tube for further research.

Water sample. Checking the condition of rivers or natural lakes. Water test for chemicals, bacteria, harmful substances, radiation. Collection of material in a test tube for further research.

Water sample. Checking the condition of rivers or natural lakes. Water test for chemicals, bacteria, harmful substances, radiation. Collection of material in a test tube for further research.

Close up de cientista irreconhecível vestindo terno hazmat coletando amostras de água, foco na mão luva segurando tubo de teste

Water sample. Checking the condition of rivers or natural lakes. Water test for chemicals, bacteria, harmful substances, radiation. Collection of material in a test tube for further research.

Water sample. Checking the condition of rivers or natural lakes. Water test for chemicals, bacteria, harmful substances, radiation. Collection of material in a test tube for further research.

Water sample. Treatment facilities. Quality control of water that has been purified and processed. The laboratory assistant collects material for research. Liquid in a test tube. Sewage treatment

Water sample. Checking the condition of rivers or natural lakes. Water test for chemicals, bacteria, harmful substances, radiation. Collection of material in a test tube for further research.

Cientista em luvas de borracha segurando tubo de teste com amostra de água de closeup rio. Análise da qualidade da água no conceito de reservatórios

Water sample. Treatment facilities. Quality control of water that has been purified and processed. The laboratory assistant collects material for research. Liquid in a test tube. Sewage treatment

Fazendo um teste de água para análise de um reservatório

Mão close-up usa luva azul detém tubo de teste de água amostra do lago. Conceber, explorar, inspecionar a qualidade da água de origem natural, preparar para fazer experiência. Ensaio de poluição das águas.

Water sample. Bacterial control of pool water. Checking the amount of algae, harmful substances and chemicals. Laboratory study of water from artificial reservoirs. Taking liquid into a test tube

Close up de cientista irreconhecível vestindo terno hazmat coletando sondas de água, foco em mãos enluvadas segurando tubo de teste

A mão do cientista em terno protetor e luva faz a entrada de água no lago. Conceito de amostras de água

Water sample. Treatment facilities. Quality control of water that has been purified and processed. The laboratory assistant collects material for research. Liquid in a test tube. Sewage treatment

Mão close-up usa luva azul detém tubo de teste de água amostra do lago. Conceber, explorar, inspecionar a qualidade da água de origem natural, preparar para fazer experiência. Ensaio de poluição das águas.

Ecologista feminina em uma luva protetora segurando um tubo de ensaio com água de um rio da cidade

Amostra de água do rio para análise. Mão na luva segurando um tubo de ensaio

Water sample. Checking the condition of rivers or natural lakes. Water test for chemicals, bacteria, harmful substances, radiation. Collection of material in a test tube for further research.

Water sample. Treatment facilities. Quality control of water that has been purified and processed. The laboratory assistant collects material for research. Liquid in a test tube. Sewage treatment

Water sample. Checking the condition of rivers or natural lakes. Water test for chemicals, bacteria, harmful substances, radiation. Collection of material in a test tube for further research.

Fazendo um teste de água para análise de um reservatório

Water sample. Bacterial control of pool water. Checking the amount of algae, harmful substances and chemicals. Laboratory study of water from artificial reservoirs. Taking liquid into a test tube

Water sample. Bacterial control of pool water. Checking the amount of algae, harmful substances and chemicals. Laboratory study of water from artificial reservoirs. Taking liquid into a test tube

Water sample. Bacterial control of pool water. Checking the amount of algae, harmful substances and chemicals. Laboratory study of water from artificial reservoirs. Taking liquid into a test tube

Water sample. Checking the condition of rivers or natural lakes. Water test for chemicals, bacteria, harmful substances, radiation. Collection of material in a test tube for further research.

Water sample. Treatment facilities. Quality control of water that has been purified and processed. The laboratory assistant collects material for research. Liquid in a test tube. Sewage treatment

Fazendo um teste de água para análise de um reservatório

Fazendo um teste de água para análise de um reservatório

Water sample. Treatment facilities. Quality control of water that has been purified and processed. The laboratory assistant collects material for research. Liquid in a test tube. Sewage treatment

Fazendo um teste de água para análise de um reservatório

Fazendo um teste de água para análise de um reservatório

Tubo de teste na praia com uma concha nele

Mão enluvada recolhe água em um tubo de ensaio. O conceito de ecologia, poluição ambiental

Cientista em luvas e terno de proteção derrama água suja do tubo de ensaio para o frasco. Conceito de amostragem de água

Médico segurando tubo de teste de swab para 2019-nCoV analisando. Teste de coronavírus. Luvas médicas azuis e máscara protetora para proteção contra o vírus covid-19. Coronavírus e pandemia

Water sample. Treatment facilities. Quality control of water that has been purified and processed. The laboratory assistant collects material for research. Liquid in a test tube. Sewage treatment

Water sample. Bacterial control of pool water. Checking the amount of algae, harmful substances and chemicals. Laboratory study of water from artificial reservoirs. Taking liquid into a test tube

Tubo de teste na praia com uma concha nele

Fazendo um teste de água para análise de um reservatório

O médico detém a vacina para um doente. Conceito médico

Close-up das mãos do cientista manipulando um teste de esfregaço em um laboratório médico

Close-up das mãos do médico manipulando um teste de esfregaço para identificação de coronavírus em um laboratório médico

Cientista segurando tubo de teste de sangue com etiqueta covid-19 ou coronavírus, testes laboratoriais para inventar medicação pandêmica

Laboratório trabalhador segurando tubo de ensaio com água sobre fundo desfocado