Upwind Report

Glyphosate use in Chester County, South Carolina

Estimated farm glyphosate use in Chester County, South Carolina was 10 pounds per square mile of county land in 2019, lower than 67% of US counties.

Map of Chester County, South 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 land10lb
US
2,060th of 3,060
South Carolina
31st of 46
Per square mile of cropland46lb

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.

Share image

A picture of Chester County against the US county median, with the source, to post or send.

Since 2000

Down from 18 in 2000 to 10 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
20001818
200100
20024.24.2
20038.48.4
20042.75.5
20055.55.5
20061111
20074.14.1
20088.18.1
20091111
20103131
20116.66.6
20128.09.3
20131332
20141417
20157.912
20167.938
20179.212
20181216
20191010
See Chester 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 Chester County, South 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.