This study focuses on heavy metal contamination in soils due to recreational shooting within the Tonto National Forest, Arizona. The main research questions are: (1) Have some soils within the Tonto National Forest (NF) been contaminated with lead (Pb) due to recreational shooting? (2) How far downslope have the soils been contaminated? Soils in permitted shooting areas were tested for lead (Pb), which show statistically significant differences in mean concentration levels when compared to control sites. The dry weight of mean lead concentrations (5125 mg/kg; p value < 0.005) were 152 times greater than that of the respective uncontaminated control site (33.4 mg/kg). Lead contamination ranged from 25,482 to 7185 mg/kg approximately 9.3 m downslope and gradually decreased from there, but was still contaminated over the entire length of the hillslope. To my knowledge, this is the first known study to examine heavy metal contamination in surficial soils within the Tonto NF due to recreational shooting.
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Ahmad M, Lee S, Moon DH, Yang JE, Ok YS (2012) A review of environmental contamination and remediation strategies for heavy metals at shooting range soils. Environmental protection strategies for sustainable development. Springer, Netherlands, pp 437–451
Brown D, Bawden C, Chatel K, Parsons T (1977) The wildlife community of Iona Island jetty, Vancouver, BC, and heavy-metal pollution effects. Environ Conserv 4(3):213–216
Cade T (2007) Exposure of California condors to lead from spent ammunition. J Wildl Manag 71(7):2125–2133
Cameron K, Hunter P (2002) Using spatial models and kriging techniques to optimize long-term groundwater monitoring networks: a case study. Environmetrics 13:629–656
Carpenter D (2001) Effects of metals on the nervous system of humans and animals. Int J Occup Med Environ Health 14(3):209–218
Centers For Disease Control And Prevention (1997) Screening young children for lead poisoning: guidance for state and local public health officials. InScreening young children for lead poisoning: guidance for state and local public health officials. CDC
Church M, Roberto G, Risebrough R, Sorenson K, Chamberlain P, Farry S, Heinrich W, Rideout B, Smith D (2006) Ammunition is the principal source of lead accumulated by California condors re-introduced to the wild. Environ Sci Technol 40(19):6143–6150
CP Optical Emission Spectrometer Themo iCAP6300 (2018) Publishing Arizona State University. http://sharedresources.asu.edu/resources/54. Accessed 2 Oct 2020
Csiki S, Martin W (2008) Spatial variability of heavy-metal storage in the floodplain of the Alamosa River. Colo Phys Geogr 29(4):306–319
Edwards D (2002) Lead distribution at a public shooting range. Dissertation, Virginia Tech
EPA Ecological Soil Screening Levels for Lead (OSWER Directives 9285.7–70) (2005) U.S. Environmental Protection Agency
EPA Hazard Standards for Lead in Paint, Dust and Soil (TSCA Section 403) (2019) U.S. Environmental Protection Agency. https://www.epa.gov/lead/hazard-standards-lead-paint-dust-and-soil-tsca-section-403. Accessed 2 Oct 2020
Fayiga O, Saha U (2016) Soil pollution at outdoor shooting ranges: Health effects, bioavailability and best management practices. Environ Pollut 216:135–145
Finkelstein M, Doak D, George D, Burnett J, Brandt J, Church M, Grantham J, Smith D (2012) Lead poisoning and the deceptive recovery of the critically endangered California condor. Proc Natl Acad Sci USA 109(28):11449–11454
Hamdan A, Schmeeckle M (2016) Damming ephemeral streams in the Sonoran Desert, Arizona, USA: biogeomorphic analysis of riparian area growth. Environ Earth Sci 75(1):83
Hunt W, Burnham W, Parish C, Burnham K, Mutch B, Oaks J (2006) Bullet fragments in deer remains: implications for lead exposure in avian scavengers. Wildl Soc Bull 34(1):167–170
Islam M, Nguyen X, Jung H, Park J (2016) Chemical speciation and quantitative evaluation of heavy metal pollution hazards in two army shooting range backstop soils. Bull Environ Contam Toxicol 96(2):179–185
Kelebemang R, Dinake P, Sehube N, Daniel B, Totolo O, Laetsang M (2017) Speciation and mobility of lead in shooting range soils. Chem Speciat Bioavailab 29(1):143–152
Largueche B (2006) Estimating soil contamination with Kriging interpolation method. Am J Appl Sci 3(6):1894–1898
Lecce S, Pavlowsky R, Bassett G, Martin D (2011) Metal contamination from gold mining in the CID district. North Carol Phys Geogr 32(5):469–495
Li X, Chi-sun P, Pui Sum L (2001) Heavy metal contamination of urban soils and Street dusts in Hong Kong. Appl Geochem 16(11):1361–1368
Migliorini M, Pigino G, Bianchi N, Bernini F, Leonzio C (2004) The effects of heavy metal contamination on the soil arthropod community of a shooting range. Environ Pollut 129(2):331–340
Mozafar A, Ruh R, Klingel P, Gamper H, Egli S, Frossard E (2002) Effect of heavy metal contaminated shooting range soils on mycorrhizal colonization of roots and metal uptake by leek. Environ Monit Assess 79(2):177–191
Murray K, Bazzi A, Carter C, Ehlert A, Kopec M, Richardson J, Sokol H (1997) Distribution and mobility of lead in soils at an outdoor shooting range. Soil Sedim Contam 6(1):79–93
Needleman H (2004) Lead poisoning. Annu Rev Med 55(209):222
Papanikolaou N, Hatzidaki E, Belivanis S, Tzanakakis G, Tsatsakis A (2005) Lead toxicity update. A brief review. Med Sci Monit 11(10):329–336
Pendergrass A, Butcher D (2006) Uptake of lead and arsenic in food plants grown in contaminated soil from Barber Orchard. NC Microchem J 83(1):14–16
Peralta J, Gardea-Torresdey J, Tiemann K, Gomez E, Arteaga S, Rascon E, Parsons J (2001) Uptake and effects of five heavy metals on seed germination and plant growth in alfalfa (Medicago sativa L.). Bull Environ Contam Toxicol 66(6):727–734
Ruxton G (2006) The unequal variance t-test is an underused alternative to Student’s t-test and the Mann–Whitney U test. Behav Ecol 17:688–690
Sloan F (2007) EPA soil sampling operating procedure. Publishing U.S. Environmental Protection Agency Science and Ecosystem Support Division Athens, Georgia. https://www.epa.gov/sites/production/files/2014-03/documents/appendix_n_soil_sampling.pdf. Accessed 19 Mar 2015
Stauffer M, Pignolet A, Alvarado J (2017) Persistent mercury contamination in shooting range soils: the legacy from former primers. Bull Environ Contam Toxicol 98(1):14–21
Ta’any R, Tahboub A, Saffarini G, (2009) Geostatistical analysis of spatiotemporal variability of groundwater level fluctuations in Amman-Zarqa basin, Jordan: a case study. Environ Geol 57:525–535
Whitlock M, Schluter D (2009) The analysis of biological data. Roberts and Company Publishers, Greenwood Village, Colorado
I acknowledge financial support for the work described herein was provided by the National Science Foundation Discover-STEM program. Technical support was provided by the Center for Bio-mediated and Bio-inspired Geotechnics (CBBG), an NSF engineering research center headquartered at Arizona State University. I am grateful for this support. Any positions expressed in this article are mine only, and do not reflect positions of the NSF or CBBG. I thank the following undergraduate students for their assistance in fieldwork: RJ Mabry, Mayra Acuna, Josue Manzano, Celena Parra, Oliver Salmeron, Daniel Segura and Daniel Valdez.
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Hamdan, A. Lead (Pb) Contamination Along a Hillslope in the Tonto National Forest, AZ: A Case Study of Recreational Shooting Using GIS Analysis. Bull Environ Contam Toxicol 106, 959–964 (2021). https://doi.org/10.1007/s00128-021-03154-2
- Heavy metal contamination
- National forest