Upwind Report

Glyphosate use in East Carroll Parish, Louisiana

Estimated farm glyphosate use in East Carroll Parish, Louisiana was 857 pounds per square mile of county land in 2019, higher than 99% of US counties.

Map of East Carroll Parish, Louisiana 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 land857lbTop 1% in the US
US
7th of 3,060
Louisiana
1st of 64
Per square mile of cropland1,011lb

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 East Carroll Parish against the US county median, with the source, to post or send.

Since 2000

Up from 291 in 2000 to 857 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
2000281291
2001432437
2002408412
2003466476
2004602602
2005267267
2006562562
2007398398
2008703713
2009733728
2010616616
2011936946
20121,0871,087
2013911911
2014766766
2015864868
2016933933
20171,0581,058
2018742742
2019857857
See East Carroll Parish 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 East Carroll Parish, Louisiana 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.