Upwind Report

Glyphosate use in Deaf Smith County, Texas

Estimated farm glyphosate use in Deaf Smith County, Texas was 114 pounds per square mile of county land in 2019, higher than 63% of US counties.

Map of Deaf Smith County, Texas 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 land114lbTop 37% in the US
US
1,131st of 3,060
Texas
64th of 254
Per square mile of cropland223lb

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

Since 2000

Up from 42 in 2000 to 114 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
20004242
20013939
20024247
20033333
20045656
20057072
20065353
20077373
20089090
2009104104
2010144144
20119090
2012143143
20138686
20149295
2015106109
2016101115
2017178178
2018167167
2019114114
See Deaf Smith 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 Deaf Smith County, Texas 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.