Upwind Report

Glyphosate use in Dorchester County, South Carolina

Estimated farm glyphosate use in Dorchester County, South Carolina was 43 pounds per square mile of county land in 2019, lower than 51% of US counties.

Map of Dorchester 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 land43lb
US
1,564th of 3,060
South Carolina
18th of 46
Per square mile of cropland160lb

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

Since 2000

Up from 19 in 2000 to 43 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
20001919
20013030
20021111
20033031
20042022
20055656
20066464
20073131
20084245
20092839
20103638
20116060
20125959
20135656
20146870
20154242
20165254
20174648
20183535
20194343
See Dorchester 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 Dorchester 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.