Upwind Report

Glyphosate use in Calhoun County, Illinois

Estimated farm glyphosate use in Calhoun County, Illinois was 119 pounds per square mile of county land in 2019, higher than 63% of US counties.

Map of Calhoun County, Illinois 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 land119lbTop 37% in the US
US
1,112th of 3,060
Illinois
91st of 102
Per square mile of cropland228lb

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

Since 2000

Up from 56 in 2000 to 119 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
20005356
20016871
20026565
2003107110
20047474
20058083
20068686
20078389
2008116119
2009140143
2010119119
20119292
2012107110
2013136136
2014122122
2015134134
2016169169
2017178178
2018172172
2019119119
See Calhoun 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 Calhoun County, Illinois 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.