Upwind Report

Glyphosate use in Warren County, Kentucky

Estimated farm glyphosate use in Warren County, Kentucky was 202 pounds per square mile of county land in 2019, higher than 74% of US counties.

Map of Warren County, Kentucky 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 land202lbTop 26% in the US
US
780th of 3,060
Kentucky
26th of 120
Per square mile of cropland263lb

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 40 in 2000 to 202 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
20002240
20014545
20026771
20034549
20046267
2005115120
20066666
2007164164
2008146150
20099797
2010124124
2011198198
2012238238
2013198198
2014281281
2015180180
2016268268
2017198202
2018189189
2019202202
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, Kentucky 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.