Upwind Report

Glyphosate use in DeKalb County, Missouri

Estimated farm glyphosate use in DeKalb County, Missouri was 248 pounds per square mile of county land in 2019, higher than 78% of US counties.

Map of DeKalb County, Missouri 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 land248lbTop 22% in the US
US
649th of 3,060
Missouri
22nd of 114
Per square mile of cropland257lb

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

Since 2000

Up from 99 in 2000 to 248 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
20009999
200199105
20028888
20039494
2004127127
2005132132
2006127127
2007176182
2008220220
2009210210
2010221221
2011297297
2012292298
2013259259
2014308308
2015281286
2016248248
2017231231
2018215220
2019248248
See DeKalb 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 DeKalb County, Missouri 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.