Text · dataset · 2026
Mercury Imports and Exports of Four Tidal Wetlands in the Sacramento Valley, California
Listed in California Open Data
The California Department of Water Resources (DWR) measured import and export loads of methylmercury (MeHg) and total mercury (THg) at four tidal wetlands in the Sacramento Valley of California to comply with the Central Valley Regional Water Quality Control Board’s Delta Methylmercury Total Maximum Daily Load (TMDL).
Description
In addition to mercury, DWR collected organic carbon, total suspended sediment, chlorophyll-a, temperature, dissolved oxygen, specific conductance, turbidity, total chlorophyll, velocity, level, and flow data.
To do this, three sets of data were collected: 1) velocity, level, and flow data were collected continuously using an Acoustic Doppler Current Profiler, 2) continuous temperature, specific conductance, salinity, dissolved oxygen, turbidity, and total chlorophyll were collected using a water quality sonde, and 3) THg, MeHg, organic carbon, total suspended sediment, and chlorophyll-a were collected via grab samples either by sampling pole or flow-weighted composites with an autosampler. ## About This Federated Record This CNRA Open Data Platform record is based on metadata federated from the Environmental Data Initiative (EDI) Data Portal.
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Its purpose is to improve the discoverability of the data package through the CNRA Open Data Platform. The EDI Data Portal is the repository of record for this data package. Metadata, resource links, and supporting information displayed here may not reflect the latest updates available in EDI.
Resources shown here—including Full Metadata, Provenance, and Data Quality Report—are provided to help users understand and evaluate the data package and the supporting information available from EDI. For the current data package, citation, DOI, data files, metadata, provenance, data quality documentation, revision history, and other supporting information, refer to the EDI data package landing page: portal.edirepository.org/nis/metadataviewer?packageid=edi.509.1&key=vqSpNwnbe91Bi8trB5RY25CoPD4 Access requirements, permissions, and authorization policies for resources hosted by EDI are established and managed independently of the CNRA Open Data Platform.
Links
Get the data
- Publisher page portal.edirepository.org/nis/metadataviewer?packageid=edi.509.1&key=vqSpNwnbe91Bi8trB5R… ↗
documentation · download · from data ca gov
- Sampling stations pasta.lternet.edu/package/data/eml/edi/509/1/4728a89a77164ccb8449c51304a785db ↗
download · from data ca gov
- Grab samples pasta.lternet.edu/package/data/eml/edi/509/1/defab59230ce935e45bfa9a823cde978 ↗
download · from data ca gov
- Sonde measurements pasta.lternet.edu/package/data/eml/edi/509/1/475e089d40817cb80f99b8c9751821ac ↗
download · from data ca gov
- Flow measurements pasta.lternet.edu/package/data/eml/edi/509/1/86bd0f7f2b8cf7346b1c861b7a98fe1b ↗
download · from data ca gov
- Final report pasta.lternet.edu/package/data/eml/edi/509/1/0973952cc517bf5f9899a57bf27df6ce ↗
download · from data ca gov
- Provenance Metadata portal.edirepository.org/nis/provenanceGenerator?packageid=edi.509.1&key=vqSpNwnbe91Bi8… ↗
download · from data ca gov
- Dataset Quality Report portal.edirepository.org/nis/reportviewer?packageid=edi.509.1&key=vqSpNwnbe91Bi8trB5RY2… ↗
download · from data ca gov
Where it is published
- California Open Data dataset page data.ca.gov/dataset/mercury-imports-and-exports-of-four-tidal-wetlands-in-… ↗
landing page · from data ca gov
Catalogue records · 1
- CKAN API data.ca.gov/api/3/action/package_show?id=0b940433-8227-4f5f-83b2-01b6cfd1c… ↗
metadata API · from data ca gov
Topics
- Stated by source
- Natural Resources · Water
- From keywords
- Earth & Environmental Science
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| California Open Data | 0b940433-8227-4f5f-83b2-01b6cfd1c45b | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data ca gov | connector:data_ca_gov@1.0.0 | |
| concepts[topic].ckan_group:data_ca_gov:natural-resources | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| concepts[topic].ckan_group:data_ca_gov:water | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| created_date | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| description | source · data ca gov | connector:data_ca_gov@1.0.0 | /notes |
| license_text | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| publication_date | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| title | source · data ca gov | connector:data_ca_gov@1.0.0 | /title |
| updated_date | source · data ca gov | connector:data_ca_gov@1.0.0 |