Upwind Report

Glyphosate use in Warren County, Indiana

Estimated farm glyphosate use in Warren County, Indiana was 486 pounds per square mile of county land in 2019, higher than 95% of US counties.

Map of Warren County, Indiana 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 land486lbTop 5% in the US
US
151st of 3,060
Indiana
21st of 92
Per square mile of cropland537lb

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 269 in 2000 to 486 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
2000269269
2001238238
2002253253
2003264264
2004321321
2005321321
2006326326
2007476481
2008497497
2009544550
2010508513
2011507507
2012461461
2013595595
2014569569
2015574574
2016491497
2017585590
2018481481
2019486486
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, Indiana 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.