Upwind Report

Glyphosate use in Cass County, Michigan

Estimated farm glyphosate use in Cass County, Michigan was 281 to 285 pounds per square mile of county land in 2019, higher than 81% of US counties.

Map of Cass 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 land281 to 285lbTop 19% in the US
US
554th of 3,060
Michigan
7th of 83
Per square mile of cropland365 to 371lb

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

Since 2000

Up from 119 in 2000 to 285 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
2000114119
2001123128
2002128132
2003194194
2004172172
2005132132
2006158158
2007185185
2008233237
2009172177
2010176176
2011176176
2012181185
2013176176
2014167176
2015237246
2016219219
2017246250
2018184193
2019281285
See Cass 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 Cass 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.