Upwind Report

Glyphosate use in McPherson County, Kansas

Estimated farm glyphosate use in McPherson County, Kansas was 283 pounds per square mile of county land in 2019, higher than 81% of US counties.

Map of McPherson 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 land283lbTop 19% in the US
US
559th of 3,060
Kansas
39th of 105
Per square mile of cropland365lb

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

Since 2000

Up from 35 in 2000 to 283 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
20003135
20017175
20028484
20036666
20046262
2005155155
20067171
2007155155
2008163163
2009226226
2010137137
2011203203
2012243243
2013190190
2014358358
2015309309
2016292292
2017296296
2018270270
2019283283
See McPherson 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 McPherson 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.