Upwind Report

Glyphosate use in Broadwater County, Montana

Estimated farm glyphosate use in Broadwater County, Montana was 62 to 63 pounds per square mile of county land in 2019, higher than 53% of US counties.

Map of Broadwater County, Montana 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 land62 to 63lbTop 47% in the US
US
1,417th of 3,060
Montana
23rd of 56
Per square mile of cropland365 to 371lb

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

Since 2000

Up from 6.0 in 2000 to 63 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
20005.36.0
20012425
20029.811
20039.811
20041111
20051819
20062525
20073939
20082627
20091718
20102525
20114040
20126868
20135051
20147878
20158686
2016103104
20177374
20186465
20196263
See Broadwater 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 Broadwater County, Montana 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.