TheMnmaximum
concentration in San Antonio Paraná 2 and Paraná 3 (sites 11, 15
and 21) (Table 2) was above the recommended value proposed by AFC
(Mn=100 μg L−1).However,Mn values were below the recommended
limits by USEPA (Mn=500 μg L−1) [53] and WHO (Mn=400 μg L−1)