Upwind Report

Glyphosate use in Dawson County, Texas

Estimated farm glyphosate use in Dawson County, Texas was 569 to 578 pounds per square mile of county land in 2019, higher than 98% of US counties.

Map of Dawson 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 land569 to 578lbTop 2% in the US
US
60th of 3,060
Texas
7th of 254
Per square mile of cropland759 to 771lb

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.

Share image

A picture of Dawson County against the US county median, with the source, to post or send.

Since 2000

Up from 92 in 2000 to 578 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
20009292
20017171
2002184184
2003197197
2004255255
2005381381
2006151151
2007344344
2008303303
2009610615
2010733737
2011273278
2012733737
2013212212
2014757762
2015644644
2016653657
2017701705
2018441441
2019569578
See Dawson 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 Dawson 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.