Data dictionary
Field definitions supplied by the publishing agency in CKAN.
| Column | Type | Label | Description |
|---|---|---|---|
| title | text | title | — |
| CAS Number | text | CAS Number | — |
| Latest Criteria | text | Latest Criteria | — |
| inhalation_unit_risk__micrograms_cubic_meter__1 | text | Inhalation Unit Risk (micrograms/cubic meter)-1 | — |
| inhalation_slope_factor__mg_kg_day__1 | text | Inhalation Slope Factor (mg/kg-day)-1 | — |
| oral_slope_factor__mg_kg_day__1 | text | Oral Slope Factor (mg/kg-day)-1 | — |
| Last Cancer Potency Revision | text | Last Cancer Potency Revision | — |
| acute_rel__micrograms_m3_ | text | Acute REL (micrograms/m3) | — |
| Species | text | Species | — |
| Acute REL Toxicologic Endpoint | text | Acute REL Toxicologic Endpoint | — |
| Acute REL Target Organs | text | Acute REL Target Organs | — |
| Severity | text | Severity | — |
| Last Acute REL Revision | text | Last Acute REL Revision | — |
| unsafe_8_hour_inhalation_rel__micrograms_m3_ | text | 8-Hour Inhalation REL (micrograms/m3) | — |
| Last 8-Hour REL Revision | text | Last 8-Hour REL Revision | — |
| chronic_inhalation_rel__micrograms_m3_ | text | Chronic Inhalation REL (micrograms/m3) | — |
| Chronic Toxicologic Endpoint | text | Chronic Toxicologic Endpoint | — |
| Chronic Target Organs | text | Chronic Target Organs | — |
| Human Data | text | Human Data | — |
| Health Risk Category | text | Health Risk Category | — |
| Cancer Risk at PHG | text | Cancer Risk at PHG | — |
| mcl_value__mg_l_ | text | MCL value (mg/L) | — |
| Cancer Risk at MCL | text | Cancer Risk at MCL | — |
| notification_level__micrograms_l_ | text | Notification Level (micrograms/L) | — |
| public_health_goal__mg_l_ | text | Public Health Goal (mg/L) | — |
| Last PHG Revision | text | Last PHG Revision | — |
| no_significant_risk_level__nsrl____inhalation | text | No Significant Risk Level (NSRL) - Inhalation | — |
| no_significant_risk_level__nsrl____oral | text | No Significant Risk Level (NSRL) - Oral | — |
| max_allowable_dose_level_chems_causing_reprod_toxicity___inh | text | Max Allowable Dose Level chems causing reprod toxicity - Inhalation | — |
| max_allowable_dose_level_chems_causing_reprod_toxicity___ora | text | Max Allowable Dose Level chems causing reprod toxicity - Oral | — |
| last_nsrl_madl_revision | text | Last NSRL/MADL Revision | — |
| Cancer | text | Cancer | — |
| Cancer - Listing Mechanism | text | Cancer - Listing Mechanism | — |
| Reproductive Toxicity | text | Reproductive Toxicity | — |
| Chemical listed under Proposition 65 as causing | text | Chemical listed under Proposition 65 as causing | — |
| Developmental Toxicity - Date of Listing | text | Developmental Toxicity - Date of Listing | — |
| Developmental Toxicity - Listing Mechanism | text | Developmental Toxicity - Listing Mechanism | — |
| Female Reproductive Toxicity - Date of Listing | text | Female Reproductive Toxicity - Date of Listing | — |
| Female Reproductive Toxicity - Listing Mechanism | text | Female Reproductive Toxicity - Listing Mechanism | — |
| Male Reproductive Toxicity - Date of Listing | text | Male Reproductive Toxicity - Date of Listing | — |
| Male Reproductive Toxicity - Listing Mechanism | text | Male Reproductive Toxicity - Listing Mechanism | — |
| child_specific_refence_dose__chrd___mg_kg_day__unless_noted_ | text | Child-specific refence dose (chRD) (mg/kg-day, unless noted) | — |
| Last chRD revision | text | Last chRD revision | — |
| chhsl_commercial_non_volatile__mg_kg_soil_ | text | CHHSL Commercial Non-volatile (mg/kg soil) | — |
| chhsl_commercial_volatile__engineered_fill__mcg_l_soil_gas_ | text | CHHSL Commercial Volatile, engineered fill (mcg/l soil gas) | — |
| chhsl_commercial_volatile__no_engineered_fill__mcg_l_soil_ga | text | CHHSL Commercial Volatile, no engineered fill (mcg/l soil gas) | — |
| chhsl_residential_volatile__engineered_fill__mcg_l_soil_gas_ | text | CHHSL Residential Volatile, engineered fill (mcg/l soil gas) | — |
| chhsl_residential_volatile__no_engineered_fill__mcg_l_soil_g | text | CHHSL Residential Volatile, no engineered fill (mcg/l soil gas) | — |
| soil_soil_gas_screening_number__chhsl__residential_non_volat | text | Soil/soil-gas screening number (CHHSL) Residential Non-volatile (mg/kg soil) | — |
Resource details
| Format | CSV |
|---|---|
| Size | 188 KB |
| Rows | 1,145 |
| Last updated | Sep 30, 2026 |
| Part of | Toxicity Criteria Database |
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
"https://ckan.cdt.dev.datopian.com/api/3/action/datastore_search?resource_id=0d417a2b-6559-4725-820f-add7c57a8bc9&limit=5""https://ckan.cdt.dev.datopian.com/api/3/action/datastore_search?resource_id=0d417a2b-6559-4725-820f-add7c57a8bc9&q=jones""https://ckan.cdt.dev.datopian.com/api/3/action/datastore_search_sql?sql=SELECT%20%2A%20FROM%20%220d417a2b-6559-4725-820f-add7c57a8bc9%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: '0d417a2b-6559-4725-820f-add7c57a8bc9', 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=0d417a2b-6559-4725-820f-add7c57a8bc9&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).