Upwind Report

Glyphosate use in Warren County, North Carolina

Estimated farm glyphosate use in Warren County, North Carolina was 17 to 20 pounds per square mile of county land in 2019, lower than 60% of US counties.

Map of Warren County, North Carolina 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 land17 to 20lb
US
1,838th of 3,060
North Carolina
59th of 100
Per square mile of cropland69 to 80lb

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

Since 2000

Down from 38 in 2000 to 20 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
20003538
20012123
20021618
20034041
20042932
20051919
20063939
20072020
20081616
20094848
20102828
20114849
20124648
20133636
20144141
20152123
20163333
20172627
20182124
20191720
See Warren 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 Warren County, North Carolina 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.