Upwind Report

Glyphosate use in Santa Barbara County, California

Reported farm glyphosate use in Santa Barbara County, California was 17 pounds per square mile of county land in 2019, lower than 61% of US counties.

Map of Santa Barbara County, California and nearby counties, coloring each county's cropland by estimated farm glyphosate use per square mile of county land in 2019 reported use. Darker colors mean more use.

2019 numbers

Per square mile of county land17lb
US
1,897th of 3,060
California
25th of 56
Per square mile of cropland200lb

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

Since 2000

Up from 15 in 2000 to 17 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
20001515
20011616
20021919
20031717
20041818
20051818
20061818
20071818
20081818
20092121
20101919
20111616
20121717
20131717
20141818
20151717
20161919
20171818
20182020
20191717
See Santa Barbara 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.

California's numbers are the state's own reported use, which USGS uses in place of an estimate, so the low and high numbers are the same.

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 Santa Barbara County, California 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.