Upwind Report

Glyphosate use in Jefferson County, Texas

Estimated farm glyphosate use in Jefferson County, Texas was 40 to 43 pounds per square mile of county land in 2019, lower than 51% of US counties.

Map of Jefferson 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 land40 to 43lb
US
1,565th of 3,060
Texas
104th of 254
Per square mile of cropland74 to 80lb

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

Since 2000

Up from 3.2 in 2000 to 43 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
200003.2
20019.59.5
200203.2
20031313
20043.119
20051313
20066.313
20076.328
20086.29.4
20091325
20101216
20116.26.2
20129.316
20132525
20142225
20152222
20161515
20171515
20181218
20194043
See Jefferson 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 Jefferson 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.