Upwind Report

Glyphosate use in Howard County, Texas

Estimated farm glyphosate use in Howard County, Texas was 161 pounds per square mile of county land in 2019, higher than 69% of US counties.

Map of Howard 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 land161lbTop 31% in the US
US
946th of 3,060
Texas
48th of 254
Per square mile of cropland428lb

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

Since 2000

Up from 21 in 2000 to 161 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
20001921
20012123
20026565
20038890
2004106106
2005144146
200698100
2007131133
20083535
2009242244
2010267270
2011275277
20128888
2013165165
2014196196
2015287287
2016275275
2017205205
2018118118
2019161161
See Howard 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 Howard 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.