Upwind Report

Glyphosate use in Washington County, Illinois

Estimated farm glyphosate use in Washington County, Illinois was 493 to 498 pounds per square mile of county land in 2019, higher than 95% of US counties.

Map of Washington 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 land493 to 498lbTop 5% in the US
US
132nd of 3,060
Illinois
13th of 102
Per square mile of cropland548 to 554lb

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

Since 2000

Up from 242 in 2000 to 498 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
2000237242
2001278283
2002345345
2003448448
2004319319
2005427432
2006437437
2007468489
2008535535
2009587587
2010803803
2011638643
2012761766
2013586586
2014683683
2015796801
2016688688
2017632637
2018550550
2019493498
See Washington 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 Washington 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.