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Study of lead levels in soils by weathering of metallic Pb bullets used in dove hunting in Córdoba, Argentina
Author(s) -
Rubio M.,
Germanier A.,
Mera M. F.,
Faudone S. N.,
Sbarato R. D.,
Campos J. M.,
Zampar V.,
Bonzi E.,
Pérez C. A.
Publication year - 2014
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.2539
Subject(s) - soil water , population , cinnabar , national park , weathering , environmental science , environmental chemistry , mineralogy , metallurgy , geology , geography , archaeology , chemistry , hematite , materials science , geochemistry , soil science , demography , sociology
A study of level of Pb in soils of the center‐north of the Province of Córdoba, a worldwide recognized tourist region for dove hunting, was performed in this work. The native forest of the region has a great population of doves associated with the grain‐productive fields of the surrounding. Contamination of soils due to hunting activities is regulated by national and local norms. The Córdoba Environmental Secretary by resolution no. 1115/2011 approved a new regulation that categorizes this activity as generator of Y31 (Pb) industrial waste. Lead from pellets alloy is deposited on the soil of the shooting fields. Samples were taken at depth of 50 mm from 315 pits referenced by GPS in accordance with local environmental authorities as well as the hunting outfitters companies. Sampling sites are distributed between parallels 31 °S (S31) up to 30 °S (S30) and between meridians W64 up to W63. Soils samples were analyzed by X‐ray fluorescence spectroscopy while Pb bullets were analyzed by scanning electron microscopy (SEM) and X‐ray diffraction (XRD). The average concentration obtained for Pb in dry soil sieved (200 mesh) was 80 ppm. Powder XRD patterns of crust material removed from the corroded surface of weathered bullets were obtained. Three Pb mineral compounds were identified by XRD analysis and also studied by optical microscopy and SEM. Copyright © 2014 John Wiley & Sons, Ltd.