Upwind Report

Glyphosate use in Kalamazoo County, Michigan

Estimated farm glyphosate use in Kalamazoo County, Michigan was 167 to 171 pounds per square mile of county land in 2019, higher than 70% of US counties.

Map of Kalamazoo 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 land167 to 171lbTop 30% in the US
US
902nd of 3,060
Michigan
21st of 83
Per square mile of cropland257 to 263lb

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

Since 2000

Up from 72 in 2000 to 171 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
20006872
20017276
20028787
2003118121
2004110110
20058383
20069498
2007121121
2008143147
2009109117
2010113113
2011105109
2012121124
201397101
2014109112
2015138142
2016130130
2017141145
2018119123
2019167171
See Kalamazoo 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 Kalamazoo 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.