A general shot of a scientist in protective overalls, goggles and masks taking a water sample from a polluted sea
Close-up hands of a scientist in protective overalls and gloves studying plants on polluted land
Two ecologists in protective coverall suits and respiratory masks collecting samples of lake water in polluted area into test tube
Team of professional ecologists in protective coveralls, gloves, helmets and respiratory masks standing in polluted area, using laptop and talking
Two ecologists wearing protective coveralls and respiratory masks collecting samples of lake water in polluted area with warning biohazard sign
Two ecologists wearing protective coveralls and respiratory masks discussing test tubes with samples of polluted water while working at gulf coast
Two female ecologists wearing protective coveralls and respiratory masks examining test tubes with samples of polluted water and talking while working at gulf coast
Group of ecologists wearing protective coveralls and respiratory masks walking along gulf coast with sample case and having discussion while doing research in polluted area
Medium shot of female ecologists in protective suits and respiratory masks collecting material evidence from toxic polluted water into test tubes and placing it in individual packs
Professional black male scientist biologist in protective workwear analyzing biohazard danger and controlling environmental contamination, sampling polluted mountain river water into test tube.
Tilting-up footage of couple of female ecologists in special protective suits and respiratory masks checking current ecological situation in most polluted area walking through mud
Two shocked scientists in protective coveralls and masks collecting samples in infected zone