DAVID HAY JONES / SCIENCE PHOTO LIBRARY DAVID HAY JONES / SCIENCE PHOTO LIBRARY
Air pollution monitor. This monitor is measuring the amount of trace metals deposited at this site due to atmospheric pollution. Dust and particulate pollutants can be a source of trace metals, along with other chemicals, that can be used by plants. Photographed at UMBS (the University of Michigan Biological Station), Pellston, Michigan, USA. This research centre includes investigations into the effect of pollutants on plant growth.
Model release not required. Property release not required.