Upwind Report

Glyphosate use in Bowman County, North Dakota

Estimated farm glyphosate use in Bowman County, North Dakota was 124 to 126 pounds per square mile of county land in 2019, higher than 64% of US counties.

Map of Bowman County, North Dakota and nearby counties, coloring each county's cropland by estimated farm glyphosate use per square mile of county land in the 2019 high estimate. Darker colors mean more use.

2019 numbers

Per square mile of county land124 to 126lbTop 36% in the US
US
1,082nd of 3,060
North Dakota
43rd of 53
Per square mile of cropland268 to 274lb

Ranks are by use per square mile of county land, on the 2019 high estimate, among US counties with a value. Counties with the same value share a rank.

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A picture of Bowman County against the US county median, with the source, to post or send.

Since 2000

Up from 9.6 in 2000 to 126 in 2019. Pounds per square mile of county land, high estimate.

Every year's numbers
Glyphosate per square mile of county land by year, in pounds
YearLowHigh
20007.29.6
20011219
20023134
20032224
20046265
20054446
20064949
20075959
20087991
2009133133
20107681
201199106
2012154154
2013118120
2014103106
20154949
20166363
20179497
2018150150
2019124126
See Bowman County on the map

About these numbers

The main number is the county's estimated farm glyphosate use for the year divided by all of its land, water left out. A county with a little farmland can use a lot per square mile of cropland and still have far less in total than a county with more farmland, so the whole-county number is the one the map colors, ranks and compares.

These are county estimates, not records. They don't show which fields were sprayed or how much any one field got.

USGS makes a low and a high estimate, which fill in use that farms didn't report in different ways.

Per square mile of cropland is the same total spread evenly over the county's cropland only, so it's higher than the whole-county number wherever only part of Bowman County, North Dakota is farmland.

Numbers are in pounds per square mile. The source gives kilograms per square kilometer, and 1 kg per km² is about 5.7 pounds per square mile.

Source: Hengl & Brungard from USGS county estimates, 2000–2019 (CC BY 4.0). Land area: US Census Bureau, 2020.

This page shows estimated farm use only. It says nothing about health and is not medical advice.