About this Dataset

Surface Water - Aquatic Organism Tissue Sample Results

This data set provides results of tissue from organisms found in surface waters, from the California Environmental Data Exchange Network (CEDEN). The data are of tissue from individual organisms and of composite samples where tissue samples from multiple organisms are combined and then analyzed. Both the individual samples and the composite sample results may be given so for individual samples, there will be a row for the individual sample and a row for the composite where the number per composite is one.

The data set contains two provisionally assigned values (“DataQuality” and “DataQualityIndicator”) to help users interpret the data quality metadata provided with the associated result.

Due to file size limitations, the data has been split into individual resources by year. The entire dataset can also be downloaded in bulk using the zip files on this page (in csv format or parquet format), and developers can also use the API associated with each year's dataset to access the data.

Users who want to manually download more specific subsets of the data can also use the CEDEN Query Tool, which provides access to the same data presented here, but allows for interactive data filtering.
Organization: State of California
Last updated: 2025-09-23T12:44:04.200106
Tags: assessment, benthic, bioaccumulation, bioassessment, bivalves, ceden, containment, fish, organisms, pollutant, sediment, surface-water, taxonomy, tissue, water-quality

Tables

CEDEN Tissue Data Prior To 2000

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.ceden_tissue_data_prior_to_2000

27.59 MB
612,656 rows
124 columns

2000 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2000_ceden_tissue_data

2.4 MB
59,263 rows
124 columns

2001 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2001_ceden_tissue_data

2.18 MB
106,042 rows
124 columns

2002 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2002_ceden_tissue_data

2.01 MB
82,805 rows
124 columns

2003 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2003_ceden_tissue_data

2.29 MB
125,808 rows
124 columns

2004 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2004_ceden_tissue_data

1.65 MB
95,281 rows
124 columns

2005 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2005_ceden_tissue_data

2.7 MB
55,998 rows
124 columns

2006 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2006_ceden_tissue_data

3.21 MB
129,001 rows
124 columns

2007 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2007_ceden_tissue_data

6.02 MB
240,747 rows
124 columns

2008 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2008_ceden_tissue_data

2.68 MB
147,613 rows
124 columns

2009 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2009_ceden_tissue_data

3.96 MB
259,338 rows
124 columns

2010 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2010_ceden_tissue_data

3.18 MB
146,465 rows
124 columns

2011 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2011_ceden_tissue_data

1.63 MB
93,256 rows
124 columns

2012 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2012_ceden_tissue_data

1.34 MB
55,925 rows
124 columns

2014 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2014_ceden_tissue_data

2.11 MB
139,073 rows
124 columns

2015 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2015_ceden_tissue_data

992.95 kB
39,463 rows
124 columns

2016 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2016_ceden_tissue_data

1.78 MB
123,557 rows
124 columns

2018 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2018_ceden_tissue_data

1.73 MB
62,793 rows
124 columns

2020 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2020_ceden_tissue_data

1.63 MB
68,880 rows
124 columns

2021 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2021_ceden_tissue_data

1.65 MB
91,908 rows
124 columns

2022 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2022_ceden_tissue_data

1.86 MB
86,766 rows
124 columns

2023 CEDEN Tissue Data

@usgov.ca_gov_surface_water_aquatic_organism_tissue_sample_results.n_2023_ceden_tissue_data

962.87 kB
41,509 rows
124 columns