Upwind Report

Glyphosate use in Warren County, Illinois

Estimated farm glyphosate use in Warren County, Illinois was 481 pounds per square mile of county land in 2019, higher than 94% of US counties.

Map of Warren 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 land481lbTop 6% in the US
US
163rd of 3,060
Illinois
19th of 102
Per square mile of cropland497lb

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

Since 2000

Up from 166 in 2000 to 481 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
2000166166
2001210210
2002254260
2003299299
2004238238
2005276276
2006265265
2007326326
2008448453
2009376382
2010409409
2011431431
2012658658
2013630636
2014437437
2015581581
2016586586
2017492492
2018431437
2019481481
See Warren 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 Warren 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.