Survey and Risk Assessment of Contaminants in Soil from a Nitrogenous Fertilizer Plant Located in North China

Table 1

Target pollutants and analytical methods.

Target pollutants	Test method	Reference
Cu	Atomic adsorption spectrometry	[14]
TPH	Gas chromatography	[15]
Fluoride	Ion selective electrode method	[16]
NH3-N	UV-visible scenery photometry	[17]

NH₃-N, ammonia-nitrogen; TPH, total petroleum hydrocarbons.