Upwind Report

Glyphosate use in Parmer County, Texas

Estimated farm glyphosate use in Parmer County, Texas was 239 pounds per square mile of county land in 2019, higher than 78% of US counties.

Map of Parmer 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 land239lbTop 22% in the US
US
667th of 3,060
Texas
26th of 254
Per square mile of cropland297lb

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

Since 2000

Up from 131 in 2000 to 239 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
2000131131
2001109109
2002131136
20036868
2004157162
2005162162
2006157157
2007170175
2008242247
2009243243
2010252257
2011261266
2012353353
2013172176
2014141141
2015155159
2016164232
2017206211
2018280280
2019239239
See Parmer 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 Parmer 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.