Upwind Report

Glyphosate use in Clark County, Illinois

Estimated farm glyphosate use in Clark County, Illinois was 394 pounds per square mile of county land in 2019, higher than 89% of US counties.

Map of Clark 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 land394lbTop 11% in the US
US
322nd of 3,060
Illinois
47th of 102
Per square mile of cropland463lb

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

Since 2000

Up from 107 in 2000 to 394 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
2000107107
2001151151
2002175175
2003224224
2004180185
2005248253
2006253253
2007336336
2008419419
2009391391
2010405405
2011346351
2012483488
2013549554
2014413413
2015335335
2016447447
2017413413
2018355355
2019394394
See Clark 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 Clark 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.