Data dictionary
Field definitions supplied by the publishing agency in CKAN.
| Column | Type | Label | Description |
|---|---|---|---|
| Census Tract | numeric | Census Tract | — |
| Total Population | numeric | Total Population | — |
| California County | text | California County | — |
| Click for interactive map | text | Click for interactive map | — |
| ces_2_0_score | text | CES 2.0 Score | — |
| ces_2_0_percentile_range | text | CES 2.0 Percentile Range | — |
| Hyperlink | text | Hyperlink | — |
| Ozone | text | Ozone | — |
| Ozone Pctl | text | Ozone Pctl | — |
| pm2_5 | text | PM2.5 | — |
| pm2_5_pctl | text | PM2.5 Pctl | — |
| Diesel PM | numeric | Diesel PM | — |
| Diesel PM Pctl | numeric | Diesel PM Pctl | — |
| Drinking Water | text | Drinking Water | — |
| Drinking Water Pctl | text | Drinking Water Pctl | — |
| Pesticides | numeric | Pesticides | — |
| Pesticides Pctl | numeric | Pesticides Pctl | — |
| tox__release | text | Tox. Release | — |
| tox__release_pctl | text | Tox. Release Pctl | — |
| Traffic | numeric | Traffic | — |
| Traffic Pctl | numeric | Traffic Pctl | — |
| Cleanup Sites | numeric | Cleanup Sites | — |
| Cleanup Sites Pctl | numeric | Cleanup Sites Pctl | — |
| Groundwater Threats | numeric | Groundwater Threats | — |
| Groundwater Threats Pctl | numeric | Groundwater Threats Pctl | — |
| haz__waste | numeric | Haz. Waste | — |
| haz__waste_pctl | numeric | Haz. Waste Pctl | — |
| imp__water_bodies | numeric | Imp. Water Bodies | — |
| imp__water_bodies_pctl | numeric | Imp. Water Bodies Pctl | — |
| Solid Waste | numeric | Solid Waste | — |
| Solid Waste Pctl | numeric | Solid Waste Pctl | — |
| Pollution Burden | numeric | Pollution Burden | — |
| Pollution Burden Score | numeric | Pollution Burden Score | — |
| Pollution Burden Pctl | numeric | Pollution Burden Pctl | — |
| Age | text | Age | — |
| Age Pctl | text | Age Pctl | — |
| Asthma | numeric | Asthma | — |
| Asthma Pctl | numeric | Asthma Pctl | — |
| Low Birth Weight | text | Low Birth Weight | — |
| Low Birth Weight Pctl | text | Low Birth Weight Pctl | — |
| Education | text | Education | — |
| Education Pctl | text | Education Pctl | — |
| Linguistic Isolation | text | Linguistic Isolation | — |
| Linguistic Isolation Pctl | text | Linguistic Isolation Pctl | — |
| Poverty | text | Poverty | — |
| Poverty Pctl | text | Poverty Pctl | — |
| Unemployment | text | Unemployment | — |
| Unemployment Pctl | text | Unemployment Pctl | — |
| pop__char_ | text | Pop. Char. | — |
| pop__char__score | text | Pop. Char. Score | — |
| pop__char__pctl | text | Pop. Char. Pctl | — |
| Location 1 | text | Location 1 | — |
Resource details
| Format | CSV |
|---|---|
| Size | 4.2 MB |
| Rows | 8,035 |
| Last updated | Sep 26, 2026 |
| Part of | CalEnviroScreen 2.0 |
Other resources in this dataset
CKAN Data API
Access resource data through the CKAN DataStore API. The examples below use this resource's ID.
Endpoints
The Data API provides these actions. Creating or updating records requires appropriate permissions; the query actions read public DataStore records.
| Create | https://ckan.cdt.dev.datopian.com/api/3/action/datastore_create |
|---|---|
| Update / insert | https://ckan.cdt.dev.datopian.com/api/3/action/datastore_upsert |
| Query | https://ckan.cdt.dev.datopian.com/api/3/action/datastore_search |
| Query via SQL | https://ckan.cdt.dev.datopian.com/api/3/action/datastore_search_sql |
Query examples
First five results
"https://ckan.cdt.dev.datopian.com/api/3/action/datastore_search?resource_id=6d6a9a5c-9221-4fc5-9b00-35015ae65837&limit=5"Results containing "jones"
"https://ckan.cdt.dev.datopian.com/api/3/action/datastore_search?resource_id=6d6a9a5c-9221-4fc5-9b00-35015ae65837&q=jones"SQL query
"https://ckan.cdt.dev.datopian.com/api/3/action/datastore_search_sql?sql=SELECT%20%2A%20FROM%20%226d6a9a5c-9221-4fc5-9b00-35015ae65837%22%20LIMIT%205"SQL queries depend on whether SQL search is enabled by the portal.
OData query
Use the resource's OData URL and its field names for paging, selecting columns, or filtering rows.
ODATA_RESOURCE_URL?$top=5
ODATA_RESOURCE_URL?$skip=5&$top=5
ODATA_RESOURCE_URL?$select=FIELD_NAME&$filter=FIELD_NAME eq 'VALUE'Replace ODATA_RESOURCE_URL, FIELD_NAME, and VALUE with the details for the selected resource. See the OData query options guide (opens in a new tab) for more examples.
Use the API in code
JavaScript (JSONP)
var data = { resource_id: '6d6a9a5c-9221-4fc5-9b00-35015ae65837', limit: 5, q: 'jones' };
$.ajax({
url: 'https://ckan.cdt.dev.datopian.com/api/3/action/datastore_search',
data: data,
dataType: 'jsonp',
success: function (response) {
console.log(response.result.total, response.result.records);
}
});Python
import json
from urllib.request import urlopen
url = 'https://ckan.cdt.dev.datopian.com/api/3/action/datastore_search?resource_id=6d6a9a5c-9221-4fc5-9b00-35015ae65837&limit=5'
with urlopen(url) as response:
result = json.load(response)['result']
print(result['total'], result['records'])For parameters and response fields, see the CKAN DataStore documentation (opens in a new tab).