Low angle shot of ecologist in protective coverall, gloves and respiratory mask holding test tube and examining sample
Low angle view of African American ecologist in protective coverall and respiratory mask applying chemicals with backpack sprayer to fence by gas pipeline
Low angle full shot of ecologist in protective coverall and respiratory mask walking with backpack sprayer and applying chemicals to fence along gas pipeline
Team of professional ecologists in protective coveralls, gloves, helmets and respiratory masks standing in polluted area, using laptop and talking
Ecologist wearing protective coverall and respiratory mask collecting sample of soil on polluted gulf shore with warning biohazard sign
Two ecologists in protective coverall suits and respiratory masks collecting samples of lake water in polluted area into test tube
Professional ecologist in protective coverall, respiratory mask and gloves collecting water sample into test tube from polluted gulf
Two ecologists wearing protective coveralls and respiratory masks collecting samples of lake water in polluted area with warning biohazard sign
Ecologist wearing protective coverall, rubber boots and respiratory mask crouching on polluted shore, collecting sample of soil and examining test tube
Two ecologists wearing protective coveralls and respiratory masks discussing test tubes with samples of polluted water while working at gulf coast
Female ecologist wearing protective coverall, respiratory mask, gloves and rubber boots collecting water sample into test tube while examining polluted gulf
Two female ecologists wearing protective coveralls and respiratory masks examining test tubes with samples of polluted water and talking while working at gulf coast