Few studies on capillary metals are conducted in the Amazon region despite the diversity of
environmental problems that directly reflect on human health, as is the case of the population of
Altamira. The hair matrix was selected because it is an indicator of past exposure, which enablesto
correlate the concentration of trace elements in neighborhood residents in the metropolitan region to
identify grouping by chemical similarities, using factor analysis as a statistical technique. The city
was chosen due to its regional importance and the intense transformation process undergone over the
years, among them the implantation of the Belo Monte Hydroelectric Plant, gold mining, and
agriculture. These events brought development linked to social, environmental, and public health
problems for the municipality. The elements were determined by Inductively coupled plasma atomic
emission spectrometry (ICP-AOS). Among the elements surveyed, Mn, Ba, Sr, Ca, Mg, and Al stood
out as the most important and responsible for the grouping of neighborhoods, with an explanation
percentage of 76.08%. The elements Mn, Ba, Sr, Ca, and Mg are responsible for grouping the
neighborhoods Esplanada do Xingu, A?aizal, Aparecida, Centro, Jardim Independente I and II,
Sudam I and II, Jardim Oriente, and Jardim dos Estados with 58.96% of varianceexplained, and Al
for the neighborhoods S?o Sebasti?o and Catedral with 17.12% of variance explained. These results
indicated that the first group has a risk associated with the metals Mn and Ba, whereas the second
with the metal Al, all with relevant toxic potential. Signs of health problems may be being
demonstrated, as these results refer to extemporaneous exposure.
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