Upwind Report

Glyphosate use in St. Clair County, Illinois

Estimated farm glyphosate use in St. Clair County, Illinois was 339 pounds per square mile of county land in 2019, higher than 85% of US counties.

Map of St. Clair 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 land339lbTop 15% in the US
US
431st of 3,060
Illinois
61st of 102
Per square mile of cropland434lb

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

Since 2000

Up from 186 in 2000 to 339 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
2000182186
2001186191
2002241241
2003300300
2004217222
2005294299
2006294294
2007352365
2008360364
2009420420
2010528533
2011454454
2012487487
2013403403
2014439439
2015560564
2016461461
2017380380
2018353353
2019339339
See St. Clair 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 St. Clair 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.