Careers with an environmental engineering degree o common industrial process design o design of waste water and air pollution control technologies o function process and interactions of the major environmental systems air land water and living o fundamental concepts of heat mass transport . Environmental engineers use knowledge of engineering soil science chemistry and biology to solve problems in the environment they tackle a variety of issues and their concerns include pollution control recycling and public health issues. In the field of engineering professionals environmental engineers use their specialized background in math and science to design and carry out solutions to everyday problems that maintain or increase productivity while simultaneously protecting the natural world. As of 2012 the greatest number of environmental engineers 28 worked in architectural engineering and related services another 21 were employed in management scientific and technical consulting services 13 worked in state government 7 in federal government and 6 in local government environmental engineers work in various settings