Upwind Report

Glyphosate use in Isabella County, Michigan

Estimated farm glyphosate use in Isabella County, Michigan was 103 to 111 pounds per square mile of county land in 2019, higher than 62% of US counties.

Map of Isabella County, Michigan 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 land103 to 111lbTop 38% in the US
US
1,154th of 3,060
Michigan
30th of 83
Per square mile of cropland143 to 154lb

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

Since 2000

Up from 37 in 2000 to 111 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
20003337
20016262
20025858
20037979
20048383
20056262
20067883
2007140140
20089599
200999116
2010128136
2011165169
2012124128
2013177185
2014259267
2015165169
2016197201
2017160169
2018103115
2019103111
See Isabella 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 Isabella County, Michigan 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.