Upwind Report

Glyphosate use in Iredell County, North Carolina

Estimated farm glyphosate use in Iredell County, North Carolina was 120 pounds per square mile of county land in 2019, higher than 63% of US counties.

Map of Iredell 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 land120lbTop 37% in the US
US
1,108th of 3,060
North Carolina
32nd of 100
Per square mile of cropland183lb

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

Since 2000

Up from 39 in 2000 to 120 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
20003939
20013131
20023535
20033539
20046969
20052727
20062727
20074246
20089599
20097780
20105050
20115353
2012141141
20136472
20146161
20153434
20162326
20174141
20182630
2019120120
See Iredell 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 Iredell 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.