Dataset of pesticides, pharmaceuticals and personal care products occurrence in wetlands of Saudi Arabia

The data set presents the occurrence of 59 currently used pesticides (CUPs) and 33 pharmaceuticals and personal care products (PPCPs), from wetland areas, in Saudi Arabia, impacted by wastewater discharge. Wetlands are valuable ecosystems, but are very fragile and easily affected by anthropogenic pressure [1], [2], [3], [4], [5], [6]. The occurrence of organic contaminants provides understanding about their fate and possible risk for humans and environment. Up to our knowledge, this is the first report on the occurrence of the mentioned organic pollutants in shallow lakes in Saudi Arabia, and the first time these compounds are analyzed in wild flora. Samples of water, sediment, soil and plants were extracted via ultrasound assisted extraction (UAE) and solid phase extraction (SPE). The compounds determination was performed using ultra-high-performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS). Interpretation and discussion of the present dataset can be found in the article entitled “Pharmaceuticals, pesticides, personal care products and microplastics contamination assessment of Al-Hassa irrigation network (Saudi Arabia) and its shallow lakes”[1].


a b s t r a c t
The data set presents the occurrence of 59 currently used pesticides (CUPs) and 33 pharmaceuticals and personal care products (PPCPs), from wetland areas, in Saudi Arabia, impacted by wastewater discharge. Wetlands are valuable ecosystems, but are very fragile and easily affected by anthropogenic pressure [1][2][3][4][5][6] . The occurrence of organic contaminants provides understanding about their fate and possible risk for humans and environment. Up to our knowledge, this is the first report on the occurrence of the mentioned organic pollutants in shallow lakes in Saudi Arabia, and the first time these compounds are analyzed in wild flora. Samples of water, sediment, soil and plants were extracted via ultrasound assisted extraction (UAE) and solid phase extraction (SPE). The compounds determination was performed using ultra-high-performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS). Interpretation and discussion of the present dataset can be found in the article entitled "Pharmaceuticals, pesticides, personal care products and microplastics contamination assessment of Al-Hassa irrigation network (Saudi Arabia) and its shallow lakes" [1] .

Value of the data
• The analysis of occurrence of organic pollutants in the environment is needed to assess their risk and fate. • Concentration values can be used by other researchers and local authorities.
• The occurrence can be useful for supporting further research of the risk and fate of organic compounds, restoration policies and contaminant elimination measures, among others. • The data of every sampling point provides a better understanding in the distribution of the organic compounds • The tables offer a comprehensive overview of the occurrence of a wide range of pharmaceuticals and PCPs in water, sediment, soil and plants of a very little studied area. • These data can be a useful contribution to prioritisation exercises as well as to establish environmental quality standards.

Data Description
The following dataset shows 4 tables with the occurrence of CUPs and PPCPs in the different environmental matrices. For both shallow lakes, Al-Asfar and Al-Hubail, the sites 3, 4 and 5 were located in the shallow lake, while site 1 was located in irrigation channels, which provide wastewater (from farms, factories and/or domestic sewage) to each lake. Site 2 was located between the end of the irrigation channels and the mouth of each lake. Detailed information of each sampling site is provided in the related article [1] . Table 1 shows the occurrence of CUPS and PPCPs in water samples, while tables 2 , 3 and 4 show the occurrence in sediments, soil and plants (wild flora Phragmites australis ) respectively. In order to make the table easier to understand the data has been filtered, eliminating in each table, those compounds that were not detected in the sampling sites. A detailed list of the analyzed compounds is provided in the related article [1] . Furthermore, the CUPs acetochlor, acrinathrin, alachlor, atrazine, atrazine-deethyl, atrazine-deisopropyl, azinphos-ethyl, azinphos-methyl, buprofezin, carbofuran, chlotianidin, coumaphos, diclofenthion, dimethoate, diuron, 2,4-dimethylaniline (DMA), 2,4dimethylphenylformamide (DMF), 2,4-dimethylphenyl-N -methylformamidine (DMPF), ethion, etofenprox, fenthion, fenthion sulfoxide, fipronil, flumethrin, hexythiazox, malathion, methiocarb, metolachlor, molinate, omethoate, parathion-ethyl, parathion-methyl, propanil, propazine, pyriproxyphen, simazine, spinosyn A, spinosyn C, spinosyn D, terbumeton, terbumeton-deethyl, terbutryn and tolclophos-methyl and the PPCPs allopurinol, amoxicillin, chloramphenicol, furosemide, indomethacin, norfloxacin and thiamphenicol were not detected in the samples. In addition, the tables also show the total accumulated contamination for each contaminant and matrix, which provides and insight of the overall presence (and use) of each compound in the area.
In the figures are represented the different the actions of the compounds detected in the environmental matrices. Since there are compounds with more than one action, the sum of the percentages of each figure overcomes 100%. Figures 1 , 2 , 3 and 4 show these actions of the compounds detected in water, sediment, soil and plants respectively. Information about the specific actions of each compound is provided in the related article [1] . These figures provide understanding about population requirements, regardless the compounds used to satisfy them.

Experimental Design, Materials, and Methods
Once at the laboratory, surface water samples were filtered with glass microfiber filters (90 mm Ø) and stored at -20 °C until the analysis by solid-phase extraction (SPE) following a previously described method [2] and this information is also available in the related research article [1] .  Table 1 Occurrence of CUPs and PPCPs in water of the study area.
Concentration in water (ng L −1 )

Al-Asfar
Al-Hubail         Lyophilized sediment, soil and plant were sieved (2 mm Ø) and extracted by ultrasound assisted extraction (UAE) using the McIlvaine-EDTA method, followed by the same SPE clean-up procedure as used for water samples [3] . To perform the UAE McIlvaine-EDTA buffer was prepared mixing 100 mL of 0.1 M citric ac. solution, 62.5 mL of 0.2 M Na 2 HPO 4 solution and 6.05 g of Na 2 -EDTA. Using MilliQ water as solvent. Then 1 g of sample was placed in a 50 mL Falcon plastic tube and spiked with the IS as described before. Then 5 mL of MeOH, 5 mL of MilliQ water and 5 mL of the MCIlvaine-EDTA buffer were added. The mix was vortex for 3 min, sonicated for 15 min and centrifuged for 6 min at 1811 rcf. The supernatant was collected in a 250 mL volumetric flask, filled with MilliQ water. Then the SPE was applied as described before.

CUPs
The conditions used for the LC-MS/MS are exhaustively detailed in the related article, as well as the identification, characterization and main properties of the target analytes [1] .

Declaration of Competing Interest
The authors declare that they have no known competing financial interests or personal relationships, which have, or could be perceived to have, influenced the work reported in this article.