“…Artificial neural networks (ANNs), which do not need to provide similar strict assumptions, as they can overcome this problem, have become very popular, especially in recent years. ANNs are frequently and effectively used in a wide variety of scientific disciplines, such as environmental pollution [8][9][10], biomechanics [11], climatology [12], finance and economy [13], and medical application [14]. In addition, with the aim of predicting the amount of basic heavy metals such as Fe, Mn, and Ni, various machine learning (ML) methods, including ANNs and deep neural networks, have been used in the literature [15][16][17][18][19].…”