Upwind Report

Glyphosate use in Mason County, Michigan

Estimated farm glyphosate use in Mason County, Michigan was 76 pounds per square mile of county land in 2019, higher than 56% of US counties.

Map of Mason 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 land76lbTop 44% in the US
US
1,342nd of 3,060
Michigan
36th of 83
Per square mile of cropland217lb

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

Since 2000

Up from 18 in 2000 to 76 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
20001818
20011414
20022226
20034246
20045050
20053236
20068082
20075252
2008116118
20096466
20104648
20114852
20125254
20138686
20147274
20153436
20163234
20173648
2018138140
20197676
See Mason 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 Mason 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.