JIM LUZIER: james-luzier@uiowa.edu
MIKE SCHUELLER: michael-schueller@uiowa.edu
Limnologists collect and analyze samples of surface
water, wastewater and groundwater throughout Iowa.
They examine the physical, chemical and biological
characteristics and processes of aquatic systems and their watersheds. The data from this work is used to
assess long-term trends in water quality throughout
the state. The environmental specialists in the Limnology
section are among the very few taxonomic experts
in the Midwest who identify, describe and classify
organisms. Most of their work is devoted to sampling
Iowa’s surface waters (primarily rivers and streams)
and evaluating both water quality and the impact of
human activity.
HIGHLIGHTS
- Collected samples from 61 ambient stream sites each month. Analyses included nutrients, such as nitrogen and phosphorus; bacteria, such as E. coli; several forms of solids; and neonicotinoid pesticides.
- Conducted approximately 75 bioassessments throughout the state. These assessments generally require several staff members to complete sampling of each site for water, fish and benthic macroinvertebrates, and a comprehensive physical habitat assessment.
- Completed sampling of selected cold water streams in northeast Iowa for nutrient analysis. Full bioassessments were completed for four streams in northeast Iowa. Continuous monitoring of temperature and dissolved oxygen using data loggers also was required for these streams.
Other Units in Environmental Health
The Office of the Director consists of 10 key functional units that enable the State Hygienic Laboratory to achieve its statutory charge set forth in the Iowa Administrative Code.
The primary mission of the Disease Control Division is to test human specimens, food and water for diseases of public health significance to protect the citizens of Iowa.
The Environmental Health Division monitors drinking water, wastewater, air, soil and food for contaminants of potential environmental and public health concern.
The Division of Administration and Finance is responsible for the management of the business practices, all Hygienic Laboratory facilities, and pre/post testing support.