Upwind Report

Glyphosate use in Fond du Lac County, Wisconsin

Estimated farm glyphosate use in Fond du Lac County, Wisconsin was 171 pounds per square mile of county land in 2019, higher than 70% of US counties.

Map of Fond du Lac County, Wisconsin 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 land171lbTop 30% in the US
US
905th of 3,060
Wisconsin
21st of 72
Per square mile of cropland200lb

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 Fond du Lac County against the US county median, with the source, to post or send.

Since 2000

Up from 44 in 2000 to 171 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
20003944
20016464
20024449
20035454
20046368
20057378
20069393
2007107107
2008151151
2009127137
2010186186
2011239239
2012147147
2013200205
2014185185
2015239239
2016205205
2017205209
2018205210
2019171171
See Fond du Lac 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 Fond du Lac County, Wisconsin 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.