Upwind Report

Glyphosate use in Henderson County, Kentucky

Estimated farm glyphosate use in Henderson County, Kentucky was 689 pounds per square mile of county land in 2019, higher than 99% of US counties.

Map of Henderson 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 land689lbTop 1% in the US
US
25th of 3,060
Kentucky
7th of 120
Per square mile of cropland777lb

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

Since 2000

Up from 132 in 2000 to 689 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
2000132132
2001239239
2002208208
2003208208
2004233233
2005335335
2006320320
2007315315
2008345350
2009432432
2010452452
2011406406
2012386386
2013501501
2014572572
2015511511
2016501501
2017440440
2018618618
2019689689
See Henderson 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 Henderson 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.