Upwind Report

Glyphosate use in Keweenaw County, Michigan

Estimated farm glyphosate use in Keweenaw County, Michigan was 0 pounds per square mile of county land in 2019, lower than 95% of US counties.

Map of Keweenaw 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 land0lb
US
2,919th of 3,060
Michigan
83rd of 83
Per square mile of cropland0lb

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

Since 2000

About the same in 2019 as in 2000: 0 in 2019, 0 in 2000. 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
2000No data0
2001No data0
200200
200300
2004under 0.1under 0.1
2005No data0
2006No data0
20070.10.1
2008No data0
2009No data0
2010No data0
2011No data0
2012No data0
20130.10.1
20140.10.1
2015under 0.1under 0.1
2016No data0
201700
2018under 0.1under 0.1
201900
See Keweenaw 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 Keweenaw 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.