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. Example R code using the API to access data across all years can be found [here](https://gist.github.com/daltare/2de1517ad1e315c4b1cad01278de96dd). Users who want to manually download more specific subsets of the data can also use the CEDEN query tool, at: https://ceden.waterboards.ca.gov/AdvancedQueryTool
Data files
| Data title and description | Access data | File details | Last updated |
|---|---|---|---|
CEDEN Tissue Data (Zipped CSV - All Years) Zipped CSV file containing all tissue data from the California Environmental Data Exchange Network (CEDEN). | Download | ZIP 106.37 MB | 01/13/21 |
CEDEN Tissue Data (Parquet File Format - All Years) This resource contains all tissue data available from the CEDEN database, in the [Apache Parquet file format]((https://parquet.apache.org/)). The data is partitioned by year. Parquet is a free and open source data storage format that allows for fast and efficient processing of large datasets. It is compatible with a variety of data analysis platforms, including the R and Python programming languages, through the [Apache Arrow platform](https://arrow.apache.org/). An example showing how to use this data with the R programming language is available [here](https://gist.github.com/daltare/209acf0789b4f1bdec272c323ba45315). | Download | ZIP 71.48 MB | 02/09/21 |
2024 CEDEN Tissue Data Tissue data for year 2024 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 4.39 MB | 02/04/25 |
2023 CEDEN Tissue Data Tissue data for year 2023 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 22.81 MB | 02/05/24 |
2022 CEDEN Tissue Data Tissue data for year 2022 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 132.07 MB | 04/26/23 |
2021 CEDEN Tissue Data Tissue data for year 2021 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 137.12 MB | 04/14/22 |
2020 CEDEN Tissue Data Tissue data for year 2020 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 106.39 MB | 02/06/21 |
2019 CEDEN Tissue Data Tissue data for year 2019 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 117.32 MB | 02/06/21 |
2018 CEDEN Tissue Data Tissue data for year 2018 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 83.10 MB | 02/06/21 |
2017 CEDEN Tissue Data Tissue data for year 2017 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 58.34 MB | 02/06/21 |
2016 CEDEN Tissue Data Tissue data for year 2016 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 187.53 MB | 02/06/21 |
2015 CEDEN Tissue Data Tissue data for year 2015 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 56.53 MB | 02/06/21 |
2014 CEDEN Tissue Data Tissue data for year 2014 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 202.40 MB | 02/06/21 |
2013 CEDEN Tissue Data Tissue data for year 2013 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 16.56 MB | 02/06/21 |
2012 CEDEN Tissue Data Tissue data for year 2012 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 77.35 MB | 02/06/21 |
2011 CEDEN Tissue Data Tissue data for year 2011 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 137.78 MB | 02/06/21 |
2010 CEDEN Tissue Data Tissue data for year 2010 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 214.92 MB | 02/06/21 |
2009 CEDEN Tissue Data Tissue data for year 2009 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 387.57 MB | 02/06/21 |
2008 CEDEN Tissue Data Tissue data for year 2008 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 220.31 MB | 02/06/21 |
2007 CEDEN Tissue Data Tissue data for year 2007 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 387.31 MB | 02/06/21 |
2006 CEDEN Tissue Data Tissue data for year 2006 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 193.12 MB | 02/06/21 |
2005 CEDEN Tissue Data Tissue data for year 2005 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 81.29 MB | 02/06/21 |
2004 CEDEN Tissue Data Tissue data for year 2004 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 141.99 MB | 02/06/21 |
2003 CEDEN Tissue Data Tissue data for year 2003 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 176.57 MB | 02/06/21 |
2002 CEDEN Tissue Data Tissue data for year 2002 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 104.20 MB | 02/06/21 |
2001 CEDEN Tissue Data Tissue data for year 2001 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 129.67 MB | 02/06/21 |
2000 CEDEN Tissue Data Tissue data for year 2000 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 77.32 MB | 02/06/21 |
CEDEN Tissue Data Prior to 2000 Tissue data prior to year 2000 from the California Environmental Data Exchange Network (CEDEN). | Download | CSV 810.66 MB | 02/06/21 |
Supporting files
| Data title and description | Access data | File details | Last updated |
|---|---|---|---|
CEDEN Tissue Data Dictionary | Download | PDF | 08/10/19 |