Upwind Report

Glyphosate use in Sanilac County, Michigan

Estimated farm glyphosate use in Sanilac County, Michigan was 298 to 308 pounds per square mile of county land in 2019, higher than 83% of US counties.

Map of Sanilac 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 land298 to 308lbTop 17% in the US
US
494th of 3,060
Michigan
5th of 83
Per square mile of cropland337 to 348lb

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

Since 2000

Up from 71 in 2000 to 308 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
20007171
20019696
20028691
2003101101
2004116116
2005142147
2006162162
2007223223
2008258258
2009228238
2010273273
2011314319
2012334334
2013318318
2014288293
2015364369
2016364364
2017334339
2018430430
2019298308
See Sanilac 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 Sanilac 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.