Upwind Report

Glyphosate use in Chippewa County, Wisconsin

Estimated farm glyphosate use in Chippewa County, Wisconsin was 202 to 206 pounds per square mile of county land in 2019, higher than 74% of US counties.

Map of Chippewa 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 land202 to 206lbTop 26% in the US
US
767th of 3,060
Wisconsin
11th of 72
Per square mile of cropland325 to 331lb

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

Since 2000

Up from 21 in 2000 to 206 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
20002121
20012525
20023939
20035457
20045457
200596100
2006107107
20077979
20086468
20098686
20106868
20118993
2012121121
2013142146
20146464
20157882
2016114114
2017110110
2018163167
2019202206
See Chippewa 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 Chippewa 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.