Environmental contaminants, species identifiers and characteristics, and other variables from the east and west US coasts for the National Status and Trends Program (NSTP) from 19840101 to 19880405 (NODC Accession 8900125)

This collection contains 1986-1989 Mussel Watch Data collected under National Status and Trends Program. The samples were collected along the east, west, gulf coast of the United States and two sites in Hawaii. Bivalve samples were analyzed for the presence of the following contaminants: polyaromatic hydrocarbons (PAH's), total DDT's and total chlorinated pesticides, and for trace metal concentrations. There are data from three phases of study, which were analyzed by Battelle Ocean Sciences. Data ranges for the three phases are: Phase 1 contains data for 288 bivalves from 96 locations; 01/07/86-05/13/86. Phase 2 contains data for 297 bivalves collected at 99 locations; 11/11/86-03/28/87. Phase 3 contains data for 321 bivalves from 107 locations; 11/20/87-03/29/88. Bivalve data also
includes species, shell length, and gonadal indices. Bivalve data associated with this study (Phases 1-3) is located on the 0-data/
directory under folder number L00434.dir.

Folder number L01130.dir contains the Benthic Surveillance Program Data for 1984 thru 1986. This program determines the toxic concentrations in sediments and bottom fish. Samples were collected in the same sites as described above. Sediments were analyzed for the presence of the following contaminants: polyaromatic hydrocarbons (PAH's), total DDT's and total chlorinated pesticides, and for trace metal concentrations. The Benthic sediment/fish data were collected concurrently with bivalve samples. However, Benthic data were only available from Battelle Ocean Sciences for Phase 1 (259 sediments at 87 locations from 01/15/86 - 05/14/86) and Phase 2 (232 sediments at 72 locations from 11/11/86 - 03/28/87) at the time of this submission.

本数据集收录了1986—1989年间依托国家现状与趋势项目（National Status and Trends Program）采集的贻贝监测（Mussel Watch）数据。样本采集于美国东海岸、西海岸、墨西哥湾沿岸以及夏威夷的2个监测点位。研究人员对双壳类样本开展了以下污染物检测：多环芳烃（polyaromatic hydrocarbons, PAH）、总滴滴涕（total DDT's）及总氯化农药，并测定了痕量金属浓度。本研究分为三个阶段，所有分析工作均由巴特尔海洋科学（Battelle Ocean Sciences）完成。三个阶段的数据覆盖范围如下：
1. 第一阶段：1986年1月7日至1986年5月13日，覆盖96个点位的288份双壳类样本；
2. 第二阶段：1986年11月11日至1987年3月28日，覆盖99个点位的297份双壳类样本；
3. 第三阶段：1987年11月20日至1988年3月29日，覆盖107个点位的321份双壳类样本。

双壳类数据还包含物种信息、壳长以及性腺指数。本研究（第一至第三阶段）对应的双壳类数据存储于0-data/目录下的L00434.dir文件夹中。

编号为L01130.dir的文件夹收录了1984—1986年的底栖监测项目（Benthic Surveillance Program）数据。该项目旨在测定沉积物与底栖鱼类中的有毒污染物浓度。采样点位与前述贻贝监测项目完全一致。研究人员对沉积物样本开展了以下污染物检测：多环芳烃、总滴滴涕及总氯化农药，并测定了痕量金属浓度。底栖沉积物/鱼类数据与双壳类样本同期采集。但在本次数据提交时，仅能从巴特尔海洋科学获取第一阶段（1986年1月15日至1986年5月14日，87个点位的259份沉积物样本）与第二阶段（1986年11月11日至1987年3月28日，72个点位的232份沉积物样本）的底栖监测数据。