Upwind Report

Glyphosate use in Ozaukee County, Wisconsin

Estimated farm glyphosate use in Ozaukee County, Wisconsin was 176 to 181 pounds per square mile of county land in 2019, higher than 71% of US counties.

Map of Ozaukee County, Wisconsin 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 land176 to 181lbTop 29% in the US
US
858th of 3,060
Wisconsin
15th of 72
Per square mile of cropland223 to 228lb

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

Since 2000

Up from 50 in 2000 to 181 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
20005050
20015050
20023232
20034146
20045964
20054141
20066868
20079191
2008123128
200996101
20109292
2011105105
2012146146
20137377
20149195
20159195
2016109109
2017132141
2018181181
2019176181
See Ozaukee 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 Ozaukee County, Wisconsin 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.