Air pollution and decreased semen quality: A comparative study of Chongqing urban and rural areas

Zhou, Nina; Cui, Zhihong; Yang, Shuai; Han, Xue; Chen, Gangcai; Zhou, Ziyuan; Zhai, Chongzhi; Ma, Mingfu; Li, Lianbing; Cai, Min; Li, Yafei; Ao, Lin; Shu, Weiqun; Liu, Jinyi; Cao, Jia

doi:10.1016/j.envpol.2013.12.030

Cited by 130 publications

(104 citation statements)

References 40 publications

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“…Previous studies suggested that exposure to NO 2 (or NO x ) and CO were associated with increased abnormalities in sperm morphology, 12,19 but not associated with sperm concentration, count, motility, nor aneuploidy 6,12,19,20,32 , which was in line with our results. In contrast, an in vivo study concluded that NO 2 inhalation might reduce the sperm production in rats; 14 Boggia et al found significantly lower sperm total motility, not sperm count, in occupational NO 2 exposed workers; 33 however, the NO 2 exposures in these two studies tended to be much higher than that in the epidemiological studies for general population, which may partly explain the inconsistence.…”

Section: Discussionsupporting

confidence: 93%

“…The average SO 2 concentration between 2013 and 2015 in our study was 23 μg/m 3 , which was lower than that in studies by Zhou et al (69 μg/m 3 ) and Radwan et al (37 μg/m 3 ). 12,19 In contrast, the average O 3 concentration in our study (134 μg/m 3 ) was much higher in comparison with studies by Hansen et al (~60 μg/m 3 ) and Sokol et al (~43 μg/m 3 ). 6,11 Third, the sample size in some studies might be insufficient to provide a sufficient statistical power, especially when a number of potential confounders were adjusted in the analyses.…”

Section: Discussioncontrasting

confidence: 91%

“…6,11 While a study in China and another study in Poland suggested that SO 2 and NO x might adversely affect sperm morphology, rather than sperm concentration or motility, Farhat et al did not observe any significant association for SO 2 and NO 2 exposures in Brazil. 12,19,20 …”

Section: Introductionmentioning

confidence: 99%

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Inverse Association between Ambient Sulfur Dioxide Exposure and Semen Quality in Wuhan, China

Liu

Zhou²,

Ma³

et al. 2017

Environ. Sci. Technol.

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Evidence concerning the association between ambient gaseous air pollutant exposures and semen quality is sparse, and findings in previous studies remain largely inconsistent. We enrolled 1759 men with 2184 semen examinations at a large reproductive medical center in Wuhan, China between 2013 and 2015. Inverse distance weighting interpolation was performed to estimate individual exposures to SO2, NO2, CO and O3 during the entire period (lag 0–90 days) and key periods (lag 0-9, 10-14, 70-90 days) of sperm development. Linear mixed models were used to analyze exposure-response relationships. SO2 exposure with 0-90 days lag was significantly associated with monotonically decreased sperm concentration (β for each interquartile range increase of exposure: −0.14; 95% CI: −0.23, −0.05), sperm count (−0.21; −0.30, −0.12) and total motile sperm count (−0.16; −0.25, −0.08). Significant associations were observed for total and progressive motility only when SO2 exposure was at the highest quintile (all Ptrend < 0.05). Similar trends were observed for SO2 exposure with 70-90 days lag. NO2, CO, or O3 exposure was not significantly associated with semen quality. Our results suggest that ambient SO2 exposure adversely affects semen quality, and highlight the potential to improve semen quality by reducing ambient SO2 exposure during early stage of sperm development.

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Section: Discussionsupporting

confidence: 93%

Section: Discussioncontrasting

confidence: 91%

See 1 more Smart Citation

Inverse Association between Ambient Sulfur Dioxide Exposure and Semen Quality in Wuhan, China

Liu

Zhou²,

Ma³

et al. 2017

Environ. Sci. Technol.

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“…On the other hand, the remaining two models are conducted to further elaborate on the outcomes of the previous ones. Multivariate linear regression has been widely applied in geographical studies, including in studying land use change and land expansion (Li et al 2007;Liu et al 2016;Soares-Filho et al 2013;Xian & Homer 2010), air temperature measurement (Mann & Schmidt 2003), soil studies and degradation (Gomez et al 2013;Luo et al 2016;Rayegani et al 2016;Sun et al 2013), air pollution (Fischer et al 2007;Sozanska et al 2002;Vallius et al 2003;Zhou et al 2014) and urban development and urban studies (Akpinar 2016a(Akpinar , 2016bFarrell et al 2015;Onishi et al 2010;Tran 2016). It is also combined with other geographical imagery and analysis methods such as remote sensing (Ahmad et al 2010;García et al 2008;Hou et al 2011;Isenstein & Park 2014;Liu et al 2010;Ma et al 2014;Rayegani et al 2016;Tian et al 2012aTian et al , 2012bYu et al 2015) and geographical information systems (GIS) (Howard et al 2012;Lee et al 2016;Sozanska et al 2002).…”

Section: Methodsmentioning

confidence: 99%

Will Distance to the Capital City Matter When Supplying New Cities in Egypt?

Ibrahim

Masoumi

2016

GeoScape

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Unlike other developing countries, the housing market in Egypt is characterized by densely populated urban areas in old cities and the peripheral urban agglomeration. In contrast, a high rate of vacancy along most of the new cities that have been established since the 1980s is seen. Regardless of such high rate of vacancies, still the variation in occupancy rates among those new cities is notable. Questions arising include: Does proximity to old cities or Greater Cairo affect the size of the population of the new cities? Is the size of the city or the year of establishment plays roles in attracting more inhabitants? The factors of spatial characteristics of new cities in Egypt remain questionable. This research aims to reveal the association between occupancy rate and six factors related to the spatial characteristics of new cities and their geographical locations, such as; current inhabitants, the estimated size of the target group, the size of new cities, total number of housing units, distance to nearby old city, and distance to Greater Cairo. Key words:Egyptian new cities, spatial analysis, distance to the capital city, population change Highlights for public administration, management and planning:• Occupancy rates of new cities established after 1990 are associated with city size.• Proximity to the nearby old city, or to Greater Cairo has no association with occupancy rate.• Central approach in planning new cities in Greater Cairo agglomeration is questioned.

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“…It is well argued that reducing airborne particulate from 70 to 20 μg/m 3 may contribute 15% reduction in air pollution related mortality within the region (WHO 2014a). Apart from mortality, many other physiological disorders induced by airborne particulates include decreased semen quality (Zhou et al 2014), chronic kidney disorder (Gresham et al 2014), dry eye syndrome (Bhatnagar et al 2014), peptic ulcers with probability of developing gastric ulcers (Lai et al 2014), skin cancer (Goldsmith 1996) and intestinal disorder (Beamish et al 2011). Children are also highly susceptible to the impacts of aerosols due to incomplete development of their immune systems (Bateson and Schwartz, 2007).…”

Section: Introductionmentioning

confidence: 99%

Airing ‘clean air’ in Clean India Mission

Banerjee

Kumar

Mall

et al. 2016

Environ Sci Pollut Res

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The submission explores the possibility of a policy revision for considering clean air quality in recently launched nationwide campaign, Clean India Mission (CIM). Despite of several efforts for improving availability of clean household energy and sanitation facilities, situation remain still depressing as almost half of global population lacks access to clean energy and proper sanitation. Globally, at least 2.5 billion people do not have access to basic sanitation facilities. There are also evidences of 7 million premature deaths by air pollution in year 2012. The situation is even more disastrous for India especially in rural areas. Although, India has reasonably progressed in developing sanitary facilities and disseminating clean fuel to its urban households, the situation in rural areas is still miserable and needs to be reviewed. Several policy interventions and campaigns were made to improve the scenario but outcomes were remarkably poor. Indian census revealed a mere 31% sanitation coverage (in 2011) compared to 22% in 2001 while 60% of population (700 million) still use solid biofuels and traditional cook stoves for household cooking. Further, last decade (2001Further, last decade ( -2011 witnessed the progress decelerating down with rural households without sanitation facilities increased by 8.3 million while minimum progress has been made in conversion of conventional to modern fuels. To revamp the sanitation coverage, an overambitious nationwide campaign CIM was initiated in 2014 and present submission explores the possibility of including 'clean air' considerations within it. The article draws evidence from literatures on scenarios of rural sanitation, energy practises, pollution induced mortality and climatic impacts of air pollution. This subsequently hypothesised with possible modification in available technologies, dissemination modes, financing and implementation for integration of CIM with 'clean air' so that access to both sanitation and clean household energy may be effectively addressed.

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Air pollution and decreased semen quality: A comparative study of Chongqing urban and rural areas

Cited by 130 publications

References 40 publications

Inverse Association between Ambient Sulfur Dioxide Exposure and Semen Quality in Wuhan, China

Inverse Association between Ambient Sulfur Dioxide Exposure and Semen Quality in Wuhan, China

Will Distance to the Capital City Matter When Supplying New Cities in Egypt?

Airing ‘clean air’ in Clean India Mission

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