Upwind Report

Glyphosate use in Lyon County, Kansas

Estimated farm glyphosate use in Lyon County, Kansas was 161 to 167 pounds per square mile of county land in 2019, higher than 69% of US counties.

Map of Lyon 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 land161 to 167lbTop 31% in the US
US
924th of 3,060
Kansas
76th of 105
Per square mile of cropland325 to 337lb

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

Since 2000

Up from 58 in 2000 to 167 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
20005558
20015858
20026972
20035858
20047275
20058789
20069090
20079898
2008187187
2009143146
2010146149
2011143143
2012147147
2013116116
2014113116
2015161161
2016184184
2017201201
2018206209
2019161167
See Lyon 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 Lyon 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.