Upwind Report

Glyphosate use in Mercer County, North Dakota

Estimated farm glyphosate use in Mercer County, North Dakota was 104 to 109 pounds per square mile of county land in 2019, higher than 61% of US counties.

Map of Mercer 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 land104 to 109lbTop 39% in the US
US
1,169th of 3,060
North Dakota
45th of 53
Per square mile of cropland217 to 228lb

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 Mercer County against the US county median, with the source, to post or send.

Since 2000

Up from 21 in 2000 to 109 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
20001821
20011018
20022424
20034040
20042124
20054850
20065558
20078282
200892100
2009122122
2010111114
2011139145
2012127130
2013155155
2014104106
20159191
20166565
20175760
2018155158
2019104109
See Mercer 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 Mercer 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.