Upwind Report

Glyphosate use in Asotin County, Washington

Estimated farm glyphosate use in Asotin County, Washington was 116 to 118 pounds per square mile of county land in 2019, higher than 63% of US counties.

Map of Asotin County, Washington 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 land116 to 118lbTop 37% in the US
US
1,118th of 3,060
Washington
6th of 39
Per square mile of cropland617 to 628lb

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

Since 2000

Up from 16 in 2000 to 118 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
20001616
20011818
20022228
20034548
20041415
20059.250
20062020
20072526
20081919
20091920
20101010
20111414
20127.48.5
20131919
20143535
20154242
20164444
20173939
20186060
2019116118
See Asotin 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 Asotin County, Washington 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.