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Physician Training Related to Environmental Hazards near Ash Superfund Sites

ABSTRACT: Physicians do not receive formal environmental health training in medical schools. The objectives of this study were to provide health care providers with basic environmental medicine training to better advise, treat or refer patients in the community and to observe any differences in the environmental medicine learning gains pre/post- test assessment. To rectify the problem of the lack of physicians’ training related to environmental hazards, we conducted an environmental health workshop which targeted physicians living near Health Zone 1, Superfund ash sites. Fifty health care providers from both St. Vincent Family Medicine and Department of Health, Duval County Health Department (DOH-Duval) participated in a pre-test survey before the training and a post-test survey following the training. We used a non-parametric Wilcoxon Signed-Rank test to compare pre- and post- knowledge of training participants. At the 10% level of significance, the number of incorrect answers significantly declined in the post-training survey compared to the pre-training survey for all participants from both facilities combined (p=0.083). Site-specific analysis show, while a significant difference was found for participants from the St. Vincent’s site (p=0.084), the difference for participants from the DOH-Duval site was not significant (p = 0.102), although the number of incorrect answers declined. The training resulted in learning gains for the 50 participants and the evaluations were very positive with 100% of physicians recommending this training to other health care providers. Additionally, training participants gave a high mark for the environmental medicine pocket guide. In 2019, the ash sites are 90% remediated and cleanup is expected to be completed in 2022. There is still a need for additional training for physicians due to other active sites (i.e., Kerr-McGee) in the community. This study highlights the importance of providing environmental hazards training to physicians and the approach by which it could be delivered effectively.

SUBMITTER: Becker A

PROVIDER: S-EPMC8568049 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:BackgroundLimited epidemiologic data exist on prenatal arsenic exposure and fetal growth, particularly in the context of co-exposure to other toxic metals.ObjectiveWe examined whether prenatal arsenic exposure predicts birth outcomes among a rural U.S. population, while adjusting for exposure to lead and manganese.MethodsWe collected maternal and umbilical cord blood samples at delivery from 622 mother-infant pairs residing near a mining-related Superfund site in Northeast Oklahoma. Whole blood arsenic, lead, and manganese were measured using inductively coupled plasma mass spectrometry. We modeled associations between arsenic concentrations and birth weight, gestational age, head circumference, and birth weight for gestational age.ResultsMedian (25th-75th percentile) maternal and umbilical cord blood metal concentrations, respectively, were as follows: arsenic, 1.4 (1.0-2.3) and 2.4 (1.8-3.3) ?g/L; lead, 0.6 (0.4-0.9) and 0.4 (0.3-0.6) ?g/dL; manganese, 22.7 (18.8-29.3) and 41.7 (32.2-50.4) ?g/L. We estimated negative associations between maternal blood arsenic concentrations and birth outcomes. In multivariable regression models adjusted for lead and manganese, an interquartile range increase in maternal blood arsenic was associated with -77.5 g (95% CI: -127.8, -27.3) birth weight, -0.13 weeks (95% CI: -0.27, 0.01) gestation, -0.22 cm (95% CI: -0.42, -0.03) head circumference, and -0.14 (95% CI: -0.24, -0.04) birth weight for gestational age z-score units. Interactions between arsenic concentrations and lead or manganese were not statistically significant.ConclusionsIn a population with environmental exposure levels similar to the U.S. general population, maternal blood arsenic was negatively associated with fetal growth. Given the potential for relatively common fetal and early childhood arsenic exposures, our finding that prenatal arsenic can adversely affect birth outcomes is of considerable public health importance.CitationClaus Henn B, Ettinger AS, Hopkins MR, Jim R, Amarasiriwardena C, Christiani DC, Coull BA, Bellinger DC, Wright RO. 2016. Prenatal arsenic exposure and birth outcomes among a population residing near a mining-related Superfund site. Environ Health Perspect 124:1308-1315;?http://dx.doi.org/10.1289/ehp.1510070.

Project description:Male reproductive disorders that are of interest from an environmental point of view include sexual dysfunction, infertility, cryptorchidism, hypospadias and testicular cancer. Several reports suggest declining sperm counts and increase of these reproductive disorders in some areas during some time periods past 50 years. Except for testicular cancer this evidence is circumstantial and needs cautious interpretation. However, the male germ line is one of the most sensitive tissues to the damaging effects of ionizing radiation, radiant heat and a number of known toxicants. So far occupational hazards are the best documented risk factors for impaired male reproductive function and include physical exposures (radiant heat, ionizing radiation, high frequency electromagnetic radiation), chemical exposures (some solvents as carbon disulfide and ethylene glycol ethers, some pesticides as dibromochloropropane, ethylendibromide and DDT/DDE, some heavy metals as inorganic lead and mercury) and work processes such as metal welding. Improved working conditions in affluent countries have dramatically decreased known hazardous workplace exposures, but millions of workers in less affluent countries are at risk from reproductive toxicants. New data show that environmental low-level exposure to biopersistent pollutants in the diet may pose a risk to people in all parts of the world. For other toxicants the evidence is only suggestive and further evaluation is needed before conclusions can be drawn. Whether compounds as phthalates, bisphenol A and boron that are present in a large number of industrial and consumer products entails a risk remains to be established. The same applies to psychosocial stressors and use of mobile phones. Finally, there are data indicating a particular vulnerability of the fetal testis to toxicants-for instance maternal tobacco smoking. Time has come where male reproductive toxicity should be addressed form entirely new angles including exposures very early in life.

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Physician Training Related to Environmental Hazards near Ash Superfund Sites

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