Upwind Report

Glyphosate use in Custer County, Nebraska

Estimated farm glyphosate use in Custer County, Nebraska was 100 to 104 pounds per square mile of county land in 2019, higher than 60% of US counties.

Map of Custer County, Nebraska 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 land100 to 104lbTop 40% in the US
US
1,207th of 3,060
Nebraska
75th of 93
Per square mile of cropland337 to 348lb

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

Since 2000

Up from 19 in 2000 to 104 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
20001619
20013031
20021722
20032525
20042930
20056363
20065858
2007103105
2008117118
2009116116
2010130133
2011145152
2012150155
2013141143
2014142150
2015110113
2016134137
2017141141
2018100102
2019100104
See Custer 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 Custer County, Nebraska 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.