Amazon Forest Fires Between 2001 and 2006 and Birth Weight in Porto Velho

Prass, Taiane Schaedler; Lopes, Sílvia da Silva; Dórea, José G.; Marques, Rejane C.; Brandão, Katiane G.

doi:10.1007/s00128-012-0621-z

Cited by 22 publications

(11 citation statements)

References 13 publications

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“…However, Henderson et al . (2011) and Prass et al (2012) did not find differences in wildfire effect estimates between men and women in respiratory and cardiovascular physician visits, and birth weight, respectively.…”

Section: Resultsmentioning

confidence: 74%

“…Of these, meteorological factors were the most prevalent adjustment variables. Some studies controlled for individual variables, such as age group and sex, by stratification (Analitis et al , 2012; Castro et al , 2009; Delfino et al , 2009; Frankenberg et al , 2005; Henderson et al , 2011; Mott et al , 2005; Nunes et al , 2013; Prass et al , 2012; Rappold et al , 2011; Sarnat et al , 2008)…”

Section: Resultsmentioning

confidence: 99%

“…These included studies on birth weight (Holstius et al , 2012; Prass et al , 2012), bone marrow content (Tan et al , 2000), systematic inflammation (Huttunen et al , 2012), physical strength and overall health (Frankenberg et al , 2005), diarrhea (Viswanathan et al , 2006), diabetes (Lee et al , 2009), and injuries (Cameron et al , 2009; Cleland et al , 2011). For the two studies that investigated birth weight, results were inconsistent (Holstius et al , 2012; Prass et al , 2012). All three cohort studies reported significant adverse associations between wildfires and health: systemic inflammation (Huttunen et al , 2012), bone marrow content (Tan et al , 2000), and physical strength and overall health (Frankenberg et al , 2005).…”

Section: Resultsmentioning

confidence: 99%

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A systematic review of the physical health impacts from non-occupational exposure to wildfire smoke

Liu

Pereira

Uhl

et al. 2015

Environmental Research

485

449

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Background Climate change is likely to increase threat of wildfires, and little is known about how wildfires affect health in exposed communities. A better understanding of the impacts of the resulting air pollution has important public health implications for the present day and the future. Method We performed a systematic search to identify peer-reviewed scientific studies published since 1986 regarding impacts of wildfire smoke on health in exposed communities. We reviewed and synthesized the state of science of this issue including methods to estimate exposure, and identified limitations in current research. Results We identified 61 epidemiological studies linking wildfire and human health in communities. The U.S. and Australia were the most frequently studied countries (18 studies on the U.S., 15 on Australia). Geographic scales ranged from a single small city (population about 55,000) to the entire globe. Most studies focused on areas close to fire events. Exposure was most commonly assessed with stationary air pollutant monitors (35 of 61 studies). Other methods included using satellite remote sensing and measurements from air samples collected during fires. Most studies compared risk of health outcomes between 1) periods with no fire events and periods during or after fire events, or 2) regions affected by wildfire smoke and unaffected regions. Daily pollution levels during or after wildfire in most studies exceeded U.S. EPA regulations. Levels of PM10, the most frequently studied pollutant, were 1.2 to 10 times higher due to wildfire smoke compared to non-fire periods and/or locations. Respiratory disease was the most frequently studied health condition, and had the most consistent results. Over 90% of these 45 studies reported that wildfire smoke was significantly associated with risk of respiratory morbidity. Conclusion Exposure measurement is a key challenge in current literature on wildfire and human health. A limitation is the difficulty of estimating pollution specific to wildfires. New methods are needed to separate air pollution levels of wildfires from those from ambient sources, such as transportation. The majority of studies found that wildfire smoke was associated with increased risk of respiratory and cardiovascular diseases. Children, the elderly and those with underlying chronic diseases appear to be susceptible. More studies on mortality and cardiovascular morbidity are needed. Further exploration with new methods could help ascertain the public health impacts of wildfires under climate change and guide mitigation policies.

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Section: Resultsmentioning

confidence: 74%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

A systematic review of the physical health impacts from non-occupational exposure to wildfire smoke

Liu

Pereira

Uhl

et al. 2015

Environmental Research

485

449

View full text Add to dashboard Cite

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“…Of the 10 deemed to have higher risk of bias, 4 did not adequately adjust for important covariates (Azevedo et al 2011; Cooper et al 1994; Prass et al 2012; Resnick et al 2015), 2 were likely underpowered due to small sample size (Cooper et al 1994; Vedal and Dutton 2006), 3 used retrospective self-report for exposure assessment with high potential for bias (Ho et al 2014; McDermott et al 2005; Marshall et al 2007), and the exposure assessment in 2 other studies was not clearly related to smoke from wildfires (Analitis et al 2012, Caamano-Isorna et al 2011). The remaining 43 studies deemed to have low to moderate risk of bias are discussed below.…”

Section: Resultsmentioning

confidence: 99%

Critical Review of Health Impacts of Wildfire Smoke Exposure

Reid

Bräuer

Johnston

et al. 2016

Environ Health Perspect

913

772

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Background:Wildfire activity is predicted to increase in many parts of the world due to changes in temperature and precipitation patterns from global climate change. Wildfire smoke contains numerous hazardous air pollutants and many studies have documented population health effects from this exposure.Objectives:We aimed to assess the evidence of health effects from exposure to wildfire smoke and to identify susceptible populations.Methods:We reviewed the scientific literature for studies of wildfire smoke exposure on mortality and on respiratory, cardiovascular, mental, and perinatal health. Within those reviewed papers deemed to have minimal risk of bias, we assessed the coherence and consistency of findings.Discussion:Consistent evidence documents associations between wildfire smoke exposure and general respiratory health effects, specifically exacerbations of asthma and chronic obstructive pulmonary disease. Growing evidence suggests associations with increased risk of respiratory infections and all-cause mortality. Evidence for cardiovascular effects is mixed, but a few recent studies have reported associations for specific cardiovascular end points. Insufficient research exists to identify specific population subgroups that are more susceptible to wildfire smoke exposure.Conclusions:Consistent evidence from a large number of studies indicates that wildfire smoke exposure is associated with respiratory morbidity with growing evidence supporting an association with all-cause mortality. More research is needed to clarify which causes of mortality may be associated with wildfire smoke, whether cardiovascular outcomes are associated with wildfire smoke, and if certain populations are more susceptible.Citation:Reid CE, Brauer M, Johnston FH, Jerrett M, Balmes JR, Elliott CT. 2016. Critical review of health impacts of wildfire smoke exposure. Environ Health Perspect 124:1334–1343; http://dx.doi.org/10.1289/ehp.1409277

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“…However, birth weight for the city of Porto Velho, in the state of Rondonia, can be affected by smoke from forest fires, frequent in the Amazon [13]. …”

Section: Introductionmentioning

confidence: 99%

Fish Consumption during Pregnancy, Mercury Transfer, and Birth Weight along the Madeira River Basin in Amazonia

Marques

Bernardi

Dórea

et al. 2013

IJERPH

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Birth weight can be a predictor of maternal health issues related to nutrition and environmental contaminants. Total hair mercury (HHg) concentration was studied as an indicator of both fish consumption and methylmercury exposure in mothers (and newborns) living in selected low income areas of the Madeira River basin, Amazonia, Brazil. This cohort study (n = 1,433) consisted of traditional riverines (n = 396), riverines who had moved to urban (n = 676) and rural (n = 67) settings, and tin miner settlers (n = 294). Median maternal HHg was significantly different (p = 0.00001) between riverine (12.1 µg·g−1), rural (7.82 µg·g−1), urban (5.4 µg·g−1), and tin miner (4.5 µg·g−1) groups studied. The same trend (of medians) was observed for newborns’ HHg which also showed significant differences between riverine (3.0 µg·g−1), rural (2.0 µg·g−1), urban (1.5 µg·g−1), and tin miner (0.8 µg·g−1) groups. The correlation between maternal and newborn HHg was statistically significant in the riverine (r = 0.8952; p = 0.0001), urban (r = 0.6744; p = 0.0001), and rural (r = 0.8416; p = 0.0001) groups but not in the mother-infant pairs in the tin miner group (r = 0.0638; p = 0.2752). Birth weight was significantly different among groups but did not show a pattern consistent with that of fish consumption (and HHg). A multiple regression analysis showed that only family income and gestational age had a significant impact on birth weight. Conclusions: Maternal HHg is an important biomarker of maternal fish consumption and of methylmercury exposure during pregnancy. However, in these Amazonian groups, only maternal education and gestational age seemed to affect birth weight positively.

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Amazon Forest Fires Between 2001 and 2006 and Birth Weight in Porto Velho

Cited by 22 publications

References 13 publications

A systematic review of the physical health impacts from non-occupational exposure to wildfire smoke

A systematic review of the physical health impacts from non-occupational exposure to wildfire smoke

Critical Review of Health Impacts of Wildfire Smoke Exposure

Fish Consumption during Pregnancy, Mercury Transfer, and Birth Weight along the Madeira River Basin in Amazonia

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