Upwind Report

Glyphosate use in Dane County, Wisconsin

Estimated farm glyphosate use in Dane County, Wisconsin was 256 to 261 pounds per square mile of county land in 2019, higher than 79% of US counties.

Map of Dane 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 land256 to 261lbTop 21% in the US
US
619th of 3,060
Wisconsin
8th of 72
Per square mile of cropland303 to 308lb

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

Since 2000

Up from 49 in 2000 to 261 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
20004949
20017979
20028484
20039898
2004103103
20055959
20069393
2007132132
2008170175
2009171181
2010185185
2011219219
2012234239
2013248248
2014218218
2015233238
2016295295
2017208208
2018261261
2019256261
See Dane 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 Dane 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.