Upwind Report

Glyphosate use in Gladwin County, Michigan

Estimated farm glyphosate use in Gladwin County, Michigan was 22 to 26 pounds per square mile of county land in 2019, lower than 57% of US counties.

Map of Gladwin 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 land22 to 26lb
US
1,751st of 3,060
Michigan
42nd of 83
Per square mile of cropland74 to 86lb

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

Since 2000

Up from 5.1 in 2000 to 26 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
20003.45.1
20016.86.8
20026.86.8
20031414
20041010
20058.610
20061212
20072121
20081515
20092124
20102933
20113636
20122121
20133741
20144953
20153234
20164343
20172629
20182024
20192226
See Gladwin 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 Gladwin 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.