Upwind Report

Glyphosate use in Grant County, Washington

Estimated farm glyphosate use in Grant County, Washington was 97 pounds per square mile of county land in 2019, higher than 59% of US counties.

Map of Grant 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 land97lbTop 41% in the US
US
1,241st of 3,060
Washington
8th of 39
Per square mile of cropland188lb

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.

Share image

A picture of Grant County against the US county median, with the source, to post or send.

Since 2000

Up from 42 in 2000 to 97 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
20003942
20014242
20024244
20033333
20045059
20055673
20065567
20076167
20085858
20094761
20107979
20117890
20128282
20139090
20147979
20158891
2016114117
201785100
20188891
20199797
See Grant 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 Grant 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.