Upwind Report

Glyphosate use in Johnston County, North Carolina

Estimated farm glyphosate use in Johnston County, North Carolina was 180 to 183 pounds per square mile of county land in 2019, higher than 72% of US counties.

Map of Johnston 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 land180 to 183lbTop 28% in the US
US
851st of 3,060
North Carolina
23rd of 100
Per square mile of cropland297 to 303lb

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

Since 2000

Up from 100 in 2000 to 183 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
200096100
2001107110
2002103103
2003117117
2004107107
2005131135
2006104104
2007125128
2008156156
2009122122
2010133133
2011101104
2012132132
2013114118
2014118118
2015118121
2016114118
2017156159
2018107111
2019180183
See Johnston 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 Johnston 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.