Upwind Report

Glyphosate use in Lamb County, Texas

Estimated farm glyphosate use in Lamb County, Texas was 377 to 385 pounds per square mile of county land in 2019, higher than 88% of US counties.

Map of Lamb 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 land377 to 385lbTop 12% in the US
US
338th of 3,060
Texas
14th of 254
Per square mile of cropland565 to 577lb

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

Since 2000

Up from 158 in 2000 to 385 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
2000158158
2001129129
2002154154
20036366
2004179190
2005202206
2006206206
2007188192
2008240244
2009286294
2010391395
2011331365
2012429490
2013327331
2014446450
2015299303
2016326326
2017403403
2018244247
2019377385
See Lamb 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 Lamb 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.