Upwind Report

Glyphosate use in Navarro County, Texas

Estimated farm glyphosate use in Navarro County, Texas was 81 pounds per square mile of county land in 2019, higher than 56% of US counties.

Map of Navarro 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 land81lbTop 44% in the US
US
1,320th of 3,060
Texas
79th of 254
Per square mile of cropland131lb

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

Since 2000

Up from 21 in 2000 to 81 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
20002121
20012831
20022428
20033535
20044545
20054242
20063131
20074949
20083131
20093939
20104242
20114646
20124242
20135660
20147477
20153939
20164646
20174246
20187474
20198181
See Navarro 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 Navarro 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.