Table 1: List of sampling sites with their geographic coordinates. Site IDs are extracted from the United Arab Emirates Soil Information System.

Location No.	City	Lat	Long
1	Abu Dhabi	55.094385	24.255033
2	-	55.626934	25.514761
3	-	55.73321	25.142376
4	Al-Ain	55.738963	25.176071
5	-	54.830366	23.86952
6	Sharjah	53.286785	24.025871
7	-	53.394047	24.003011
8	-	53.599539	23.083949