of Air Quality has the primary responsibility for protecting the health
and welfare of North Dakotans from the harmful effects of air pollution.
The Air Quality Monitoring branch ensures that the ambient
(outside) air quality in
North Dakota is better than the levels required by the state and federal
Ambient Air Quality Standards. To address this responsibility, the
Department owns and operates a network of eight ambient air quality monitors
throughout the state.
As part of their national monitoring
network, the National Park Service has installed an ambient
monitoring site at Theodore Roosevelt National Park - South Unit.
The Department operates various monitoring equipment at this site
on their behalf.
Theodore Roosevelt National Park North Unit
In addition to
the ambient air quality monitoring sites operated by the
Department, the owners of certain industrial sources of air
emissions also operate air quality monitoring
sites within their immediate spheres of influence. The site locations
selected are based on computer dispersion modeling and prevailing wind
Each year the Department prepares
an annual report on the ambient air quality data compiled for the previous
calendar year. These and other periodic reports can be found via the links
reports below were prepared specifically for two-sided printing.
Therefore, blank pages will occur in single-sided printed version.
Each year, the Department compiles a report summarizing the ambient air
quality data obtained from the network of air quality monitoring
sites in the state during the previous year. The reports include
sulfur dioxide, nitrogen dioxide, ozone, ammonia, hydrogen sulfide,
and particulate matter ambient air quality data. Online versions of
each report from 1995 to present are available by selecting the
desired year in the drop-down menu, below.
A printed or electronic copy of a given report may be requested by
contacting the North Dakota Department of Health Ambient Air
Quality Monitoring Program at 701.328.5188
For a number of
years, in addition to the annual report, the Department also published
quarterly reports. These have now been superseded by the ability to
generate custom time period data summaries. These summaries can cover
historical periods (including those covered by the quarterly reports)
up until the present.
A custom summary can be requested by calling
701.328.5188 or emailing Ryan
Historical Williston Metals Monitoring Data
read our disclaimer before viewing the
historical Williston metals monitoring data.