This file contains provisional results from the analysis of mercury concentration in fish fillet tissue plug samples collected during that National Coastal Condition Assessment field season in 2020. "Preliminary quality reviews of these data have been completed. However, the data are not considered to be final until the National Coastal Condition Assessment 2020 & 21 Report is published. " Data may be updated at any time. The changelog for the associated file may be found below the column name definitions. End-users are responsible for reviewing the suitability of these data for their purposes. "Please bring any questions about the data to the attention of Hugh Sullivan, NCCA Lead at sullivan.hugh@epa.gov. " "For information about NCCA protocols, please check the NCCA 2020 Field Operations Manual, Site Evaluation Guidelines; Lab Operations Manual, and Quality Assurance Project Plan on the NCCA Website: https://www.epa.gov/national-aquatic-resource-surveys/manuals-used-national-aquatic-resource-surveys#National%20Coastal%20Condition%20Assessment" Column Name Definition ACTUAL_DATE Actual date of collection of fish tissue sample. May differ from sample collection date for other samples collected at the same site. ANALYTE Analyte name (Mercury) ARRIVAL_TEMP Temperature upon arrival at lab BATCH_ID Laboratory batch number CAS_NO Chemical Abstract Service Registry Number for analyte. NARS_COMMENT "Comment explaining NARS_FLAG or other qualifying information, if applicable." CONDITION_CODE "Condition of sample upon arrival at lab; Legal values are: OK = Sample is in good condition, C = Sample container is cracked, L = Sample container is leaking, ML = Sample Label is missing, NF = Sample is not frozen (for samples shipped frozen), W = Sample is warm (fish plug samples analyzed for mercury are considered warm if they are > 8 °C upon arrival); Q = other quality concern not otherwise noted. See comment." DATE_ANALYZED Date sample analyzed by lab DATE_COL |01|02|03|04|05|06|07|08|09|10|11|24 Date sample or data were collected DILUTION Dilution factor if sample needed to be diluted for analysis HOLDING_TIME Time between sampling and analysis (days). See Laboratory operations manual for required holding time for each analyte. INSTRUMENT Instrument Id for instrument used to analyze sample LAB Lab that conducted analysis LAB_SAMPLE_ID Sample id assigned by lab MATRIX "Material used for analysis (WATER, SEDIMENT, or TISSUE)" MDL Method detection limit METHOD Method used to determine reported result. NARS_FLAG NARS flag. ND = Nondetect; H = holding time issue (holding times for each analyte may be found in the Laboratory Operation Manual https://www.epa.gov/national-aquatic-resource-surveys/national-coastal-condition-assessment-2020-manuals); S = shipping issue; L = Less than reporting limit but above MDL; Q = other quality issue. See comment. NCCA_REG Northeast|Southeast|Gulf|West|Great Lakes| "National Coastal Condition Assessment Region. Northeast includes states ME, NH, MA, RI, CT, NY, NJ, MD, DE, and VA. Southeast includes NC, SC, GA, and east coast of FL. Gulf of Mexico includes the west coast of Florida, Alabama, Mississippi, Louisiana and Texas. West Coast includes Washington, Oregon and California. Great Lakes includes the US shore of all Great Lakes. No missing values allowed." PSTL_CODE "State (US) or province (Canada) two letter postal code for site sampled. 50 state postal codes plus AS, MP, GU, PR, VI for American Samoa, Commonwealth of Northern Marianas, Guam, Puerto Rico and Virgin Islands. No missing values allowed." PUBLICATION_DATE Date the dataset was published to the NARS site RESULT Analytical result RESULT_UNITS Result unit RL Lab reporting limit SAM_CODE Sample code (Regular/Lab duplicate/Lab split) SAMPLE_ID NCCA Sample ID SAMPLE_TYPE Code identifying sample type SITE_ID "NCCA Site ID for the study and year sampled. Preferred form is NCAnn_MM-xxxxx where nn is survey cycle year (04, 08, 13, 18, etc), MM is two letter state code, and xxxxx is between 10001 and 99999. No missing values allowed. No missing values allowed." STUDY Estuarine|Reef_Flat|Near_Shore| Albemarle_Pamlico|NearShorePlusBays Name of primary study site belongs to. A unique site may belong to multiple studies. No missing values allowed. UID Unique identifier for the site/visit VISIT_NO |1|2 Sequential visit an index period; Visit: 1 or 2 DESIGN_YR Year for which the survey design was drawn. COVID travel restrictions led to NCCA 2020 sites being sampled in 2020 and 2021. UNIQUE_ID Unique site ID based on location. Does not depend on year sampled or any other factor. Follows a unique site through multiple survey designs. Form is NCA_ss_nnnnn where ss state and nnnnn is number that starts at 10001. No missing values allowed. Text FROM_FTIS Fish fillet plug sample was collected from specimen submitted for the whole fish contaminant indicator. NAME_SCI Genus and species of fish specimen from which the fish fillet plug sample was submitted for analysis. For a list of target species please see the NCCA 2020 Field Operations Manual: https://www.epa.gov/national-aquatic-resource-surveys/national-coastal-condition-assessment-2020-manuals LENGTH_1 "Length (in mm) of first fish specimen from which a fish fillet plug sample was collected. Length is measured from the anterior-most part of the fish to the tip of the longest caudal fin ray (when the lobes of the caudal fin are depressed dorsoventrally). If only one target fish was collected, one plug is take from each side of the fish and a second fish is not recorded." LENGTH_2 "Length (in mm) of second fish (if applicable) from which first fish fillet plug sample was collected. Length is measured from the anterior-most part of the fish to the tip of the longest caudal fin ray (when the lobes of the caudal fin are depressed dorsoventrally). If only one target fish was collected, one plug is take from each side of the fish and a second fish is not recorded." WEIGHT_1 "Mass (in grams ) first fish specimen from which a fish fillet plug sample was collected. If only one target fish was collected, one plug is take from each side of the fish and a second fish is not recorded." WEIGHT_2 "Mass (in grams ) of second fish specimen from which a fish fillet plug sample was collected. If only one target fish was collected, one plug is take from each side of the fish and a second fish is not recorded." CHANGE LOG PROVISIONAL_NCCA20_MERCURY_IN_FISH_FILLET_PLUG_DATA DATE ACTION 17-Jun-22 Initial publication of provisional data to the National Aquatic Resource Surveys Data page.