Time series of mesoplastics and microplastics abundance from two sandy beaches in Taiwan

This dataset presents microplastics and mesoplastics abundances, shapes and colors from samples collected from two sandy beaches at the northern coast of Taiwan. Samples where collected from Longmen Beach (25.02951°N, 121.9355°E) and from Xialiao Beach (25.21469°N, 121.65406°E). The data set consists of three cvs-files for Longmen Beach and three csv-files for Xialiao Beach. Each of these files contains data about the abundance of particles, shapes, and colors. For a detailed description of sampling location, sampling procedure, plastic particle extraction and counting please refer to: ...

Each table contains following data:
Date_YYYY-MM-DD = sampling date in the form of year-months-day
Country_Region = country or region where samples were collected
Location_name = name of the beach where samples were collected
Location_lat = coordinates of the sampling location (latitude / N)
Location_lon = coordinates of the sampling location (longitude / E)
Transect = A letter A, B, C for each of the three transects. Transects are 1 m apart from each other and run perpendicular to the water line starting in the dunes and ending at the intertidal.
Position = 50 x 50 cm quadrat from which the samples were taken. Numbering starts in the dunes with 1 and ends at the intertidal.
Size_min_mm = lower particle size in mm
Size_max_mm = upper particle size in mm
Size_class = name of the size class for plastic pieces (microplastics or mesoplastics)
Particle_count = number of plastic particles in a sample (only in file "... particle count.csv")
Particle_weight_g = weight of the plastic particles found in a sample (only in file "... particle count.csv")
Weight_dry_sand_g = dry weight of the sand before plastic particles were extracted (only in file "... particle count.csv")
Beach_Zone = beach zone in which the sample was collected (only in file "... particle count.csv")

Shapes were classified into following categories: fragment, foamed_plastic, pellet, foil, fiber, fishing_line, cigarette_butt, rope, rubber, fabric, unclear.

Colors were classified into following: no_color, black, grey, red_pink, orange_brown_yellow, green, blue, purple