With regards to the health effects of PM2.5, epidemiological and clinical studies suggest a strong association between human exposure to PM2.5 and the risk of cardiovascular disease development. These studies have shown that exposure to PM2.5 from ambient air pollution and/or tobacco smoking is linked to a number of cardiovascular conditions including hypertension126, coronary artery disease127, myocardial infarction128, 129, atherosclerosis126, and arrhythmia130. To this end, short term exposure (< 24 hours) to PM2.5 is associated with 0.4% to 1% increase in the relative risk of daily cardiovascular mortality131, whereas long term exposure posed a higher relative risk131, 132 . Interestingly, the risk of atherosclerosis as measured by …show more content…
Thus, deposition of PM2.5 on alveoli was found to trigger an inflammatory response and oxidative stress, accompanied with the release of a host of pro-inflammatory mediators, vasoactive molecules and reactive oxygen species into the circulation. These will subsequently affect the vascular integrity and induce thrombogenesis138, 140. Also, it has been proposed that PM2.5 can modulate the autonomic nervous system and result in increased vasoconstriction and change heart rate variability, which will potentially enhance the risk of developing arrhythmias and thrombosis141. Importantly, it has been found that the dose-response relationship between particulate matter exposure and cardiovascular mortality is also non-linear142. In fact, the observed dose-response curve was steep at low levels, suggesting that a consequential adverse cardiovascular outcome can happen as a result of exposure to low levels142. Interestingly, a study suggested that PM2.5 is responsible for more than 90% of the predicted harm caused by thirdhand smoke pollutants143. In summary, clearly, there is substantial evidence in the literature that PM2.5 from ambient air pollution and smoking exerts harmful effects on the cardiovascular system. However, whether e-cigarettes PM2.5 produces similar effects is not known yet, but warrants investigation. This notion is
Pollution continues to pose an enormous threat to residents of urban cities worldwide. In the August 2008 Monthly Update, it is stated that approximately 800,000 deaths each year can be attributed to outdoor air pollution, making pollution the single most harmful environmental hazard to human health in urban areas (Kallman). The fact that pollution kills hundreds of thousands of people each year alone portrays just how dangerous living in these conditions can be. Kallman writes about a study which proves an increase in upper respiratory diseases, cardiovascular mortality, respiratory mortality, and low birth weights when exposed to air pollutants (August 2008: Monthly Update). These can be very serious diseases and complications which, when contracted, can lead to death or very serious illnesses. There
Another form of pollution is cigarette smoke. Cigarettes alone contain dangerous chemicals that seriously can damage your health and others around you. That’s why from the first of July in 2007 it was illegal to smoke in public areas like pubs clubs and hotels. Smoking can cause lung disease and different types of cancers as well as heart diseases. Mentally, smoking can affect how you think and cause stress.
Air Pollution today has lead CDC's fight against environmental -related respiratory illness, including asthma.An estimated number of 6.5 million deaths are attributed each year to poor air quality, making this the world's largest threat to human health.According to the World Energy Outlook and the IEA estimate that death due to household air pollution in Africa may decrease by 110,00 to 2040.However, due to economic growth, urbanization and automobile emissions, outdoor air pollution may rise from 300,00 to 450,000 over the same period. Am going to be looking at the causes of air pollution. the problems emerging with air pollution and also how we as a community can help decrease the amount of death rate associated with air pollution.I remember growing up in Africa Air pollution was always a talk about a subject that always comes out because it is really contagious due to the fact that we are breathing bad air that is caused by our human contribution to the environment.Air pollution is considered to be a public health problem, it is responsible for most of our health problems after some research has been conducted in many different parts of the world and regions. According to the Geochemistry and Health paleopathological research suggests that air pollution is a form of smoke, plagued our oldest ancestors.Air pollution has emerged as one of the leading risk factors for stroke worldwide.
The author begins the article by discussing the death percentage related to air pollution and what causes the elevated levels of air pollution. Huth continues the article by pointing out that different areas have different problems related to air pollution. Finally, Huth draws attention to the fact that different countries have different solutions to the air pollution. Though this piece was written for the entire United States, the fact that air pollution can be deadly to humans is universally applicable. Though Huth is a reporter and not an environmental scientist, Huth does cite reports made by credible institutions. Though this article talks only about how air pollution is deadly and does not expand the idea to talk about other health complications, the fact that air pollution is dangerous to human health does support my claim that a reduction in air pollution will lead to a better quality of
In the past decade, the severe air pollution problem in fast developing countries, particularly in China, has caused highly social and scientific attention. In 2014, 92 % of the world population are exposed over to the WHO Air Quality Guidelines (AQG) PM2.5 concentration level of 10 μg/m3 (World Health Organization, 2016). Ambient particulate matter (PM) pollution ranked as the third leading risk factor in India and Nepal, and ranked as the fifth in China (GBD 2015 Risk Factors Collaborators, 2016). In 2012, about 3 million deaths globally were attributed solely to ambient air pollution, and around 87% of it occurred in low- and middle-income countries (World Health Organization, 2016).
Did you know many upper respiratory diseases such as asthma and others diseases like cataracts and skin cancer are aggravated by air pollution. The NRDC (Natural Resources Defense Council) states that “the following air pollutants are common triggers of asthma, ground level ozone, sulfur dioxide, fine particulate matter and nitrogen oxide.” Air pollution is the presence in or introduction into the air of a substance which has harmful or poisonous effects.
Air pollution is the dispersion of particulates, biological molecules, or other harmful materials into the atmosphere, causing diseases, allergies and death to humans, damage to other living organisms such as animals and food crops or the natural or built environments (Brunekreef & Holgate, 2002; Nowak, Crane, & Stevens, 2006). Polluted air directly or indirectly may cause or be attributed to an increase in fatality or serious unwellness and decline humans state of health (Kampa & Castanas, 2008). For example, in Canada, the Ontario Medical Association has attributed 9500 premature deaths per year and evaluates increased costs of health care ($506.64 M) and missed productivity ($374.18) as a result of air pollution (Rowe, 2011). Thus, employment
According to a study done in the US (WHO, 2010), persons with lower socioeconomic status had higher levels of PM2.5 exposure than those of a higher status. This was based on the following indicators: Unemployment, education, earnings and poverty. The study revealed that persons with education less than a high school degree had higher exposures than those with a high school degree. This is also true for the unemployed, those in the poverty range as well as those with lower earnings than those of a higher status.
The primary health issues that come with the impact of air pollution are asthma, cardiovascular illnesses and premature mortality. These health issues are due to pollution and the poor air quality such as ozone. Thus, human health becomes a concern and issue. The individuals who are usually more vulnerable to such illnesses are the children and elderly. For example, there’s approximately 162,438 children under the age of and 258,586 adults aged 65 years and older in Riverside county that are prone to environmental health illnesses (cdph). According to UCLA institute of the Environment and Sustainability,
The University of Texas Health Science Center has found that the amount of PM2.5 in the air in Houston, Texas can be linked with a small increase in mortality rate. Houston is largely industrialized which accounts for the emission of pollutants that negatively affect the people and environment. Home to America’s largest petrochemical industry, as well as many ports and forms of transportation, it’s little surprise that the concentration of PM2.5 in the city can be greater than some other cities. Scientists recorded the levels of PM2.5 in Houston over 11 years and found that though the PM2.5 particles’ mass was greater than the national standard on only 17 days out of the 11 years, on those single days, the mortality risk increased by 1.43%.
This issue matters because there are people that are getting hurt from this pollution not to mention the damage pollution is doing to our environment. Inhaling pollution is very destructive to our health. “The study, in Circulation Research, found consistent relationships between
Air pollution has been recognized as a major threat to environmental health, and the effects that it can have on the population are extremely varied. In the environmental aspects, air
Air quality depends on the presence of chemical, physical or biological agents which influence the natural composition of the atmosphere. Wood smoke contains irritants, systemic toxins and carcinogens. Burning of wood for heating, cooking, and lightening results in exposure to such pollutants as fine particles and carbon monoxide (http://www.who.int/). It was also found that high amounts of polycyclic aromatic hydrocarbons present in wood smoke, produce high levels of free radicals, DNA damage as well as inflammatory and oxidative stress response gene expression (Danielsen et al. 2011). There is consistent evidence that both ambient (outdoor) and household (indoor) air pollution cause upper (laryngitis, sinusitis) and lower (bronchitis, asthma, chronic obstructive pulmonary disease) respiratory diseases and other conditions, which can even be fatal. All family members are exposed to adverse effects of wood smoke, but the highest risk occur to women and young children, who spend the most time near the domestic hearth. It was
Air, is one of the most substantial source to mankind and our planet. While it exists, so does everything else along. However, in today’s epidemic, there has been certain factors that have increased in understanding whether the air we breathe today is healthy or not? Is it doing more harm than we thought? In other words, the health risks against air pollution have risen in the past few decades; all from what you may ask? Well, it could be for various factors and evaluations; either environmental or materialistic. Pollution is a major public health crisis in the world. (Friis, 2012). This is one of the conflicts that contribute to various aspects of an individual’s life, whether they may realize it or not. In this paper will include the sources that cause pollution with the effects it cause as well as policies on the regulation of air pollution.
In today’s world, it seems there are a plethora of ailments. Diseases such as obesity, dyslipidemia, high blood pressure, and high blood glucose levels are a real concern for individuals. According to Prasanna Kumar (2011), the previously listed ailments are a cluster of individual illnesses that make up Metabolic Syndrome (MetS). Therefore, MetS is not accepted as a disease, rather a syndrome with numerous risk factors for developing cardiovascular disease (CVD) or diabetes.