Upwind Report

Glyphosate use in Butte County, California

Reported farm glyphosate use in Butte County, California was 90 pounds per square mile of county land in 2019, higher than 58% of US counties.

Map of Butte County, California and nearby counties, coloring each county's cropland by estimated farm glyphosate use per square mile of county land in 2019 reported use. Darker colors mean more use.

2019 numbers

Per square mile of county land90lbTop 42% in the US
US
1,279th of 3,060
California
16th of 56
Per square mile of cropland291lb

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

Since 2000

Up from 65 in 2000 to 90 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
20006565
20016161
20027777
20037979
20048888
20059696
20068989
20078484
20088282
20095353
20105656
20114444
20128888
20138989
2014100100
2015109109
2016102102
20179999
2018104104
20199090
See Butte 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.

California's numbers are the state's own reported use, which USGS uses in place of an estimate, so the low and high numbers are the same.

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 Butte County, California 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.