Upwind Report

Glyphosate use in Jefferson County, Kansas

Estimated farm glyphosate use in Jefferson County, Kansas was 206 pounds per square mile of county land in 2019, higher than 74% of US counties.

Map of Jefferson County, Kansas 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 land206lbTop 26% in the US
US
768th of 3,060
Kansas
62nd of 105
Per square mile of cropland234lb

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

Since 2000

Up from 71 in 2000 to 206 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
20007171
20019191
2002101101
20039696
2004111111
2005101101
20069191
2007161161
2008165165
2009156156
2010215215
2011205205
2012226226
2013201201
2014266271
2015241241
2016256256
2017241241
2018236236
2019206206
See Jefferson 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 Jefferson County, Kansas 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.