Upwind Report

Glyphosate use in Baca County, Colorado

Estimated farm glyphosate use in Baca County, Colorado was 134 pounds per square mile of county land in 2019, higher than 65% of US counties.

Map of Baca County, Colorado 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 land134lbTop 35% in the US
US
1,053rd of 3,060
Colorado
12th of 63
Per square mile of cropland331lb

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

Since 2000

Up from 6.5 in 2000 to 134 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
20006.56.5
20011515
20021111
20038.811
20045757
20057079
20063535
20072931
20087880
20096161
20105757
2011116116
2012116116
20139193
2014121124
20158080
2016103103
2017127127
2018113113
2019134134
See Baca 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 Baca County, Colorado 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.