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Worlds 25 Dirtiest Cities

 
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LähetäLähetetty: 18.3.2008 4:12    Viestin aihe: Worlds 25 Dirtiest Cities Vastaa lainaamalla viestiä

To see which cities in the world were dirtiest, we turned to Mercer Human Resource Consulting's 2007 Health and Sanitation Rankings. As part of their 2007 Quality of Life Report, they ranked 215 cities worldwide based on levels of air pollution, waste management, water potability, hospital services, medical supplies and the presence of infectious disease.

The 2007 Worldwide Quality of Living Survey by Mercer Human Resource Consulting has found that four of the world’s five top-scoring cities for health and sanitation are in North America. Calgary ranks top with a score of 131.7, followed by Honolulu, which scores 130.3. Helsinki – the only European city in the top five – follows closely in the rankings with a score of 128.5. Ottawa and Minneapolis take fourth and fifth places with scores of 127.2 and 125.7 respectively.

Scores are based on the quality and availability of hospital and medical supplies and levels of air pollution and infectious diseases. The efficiency of waste removal and sewage systems, water potability and the presence of harmful animals and insects are also taken into account.

Cities are ranked against New York as the base city which has an index score of 100. The analysis is part of Mercer’s Worldwide Quality of Living Survey, covering 215 cities, which is conducted to help governments and major companies to place employees on international assignments. For the Health and Sanitation Rankings, the index scores range from the worst on the list--Baku, Azerbaijan, with a score of 27.6--to the best on the list--Calgary, Canada, with a score of 131.7.

“Companies managing a global workforce must take into account a range of factors when structuring remuneration packages for their expatriate employees,” said Yvonne Sonsino, principal at Mercer. “Organisations can struggle to find suitably qualified local staff when operating overseas and so rely on benchmark data to ensure the rewards they offer encourage employees with transferable skills to accept international assignments.”

The lowest-ranking city for health and sanitation is Baku in Azerbaijan, which scores just 27.6. Other low-scoring cities include Dhaka in Bangladesh, Antananarivo in Madagascar and Port Au Prince in Haiti, which score 29.6, 30.1 and 34 respectively.

“Poor countries often lack adequate medical infrastructure including hospitals and health networks. Furthermore, provision of care is hampered by poor sanitation and unsafe water facilities in many areas,” said Slagin Parakatil, senior researcher at Mercer. “The development of efficient waste removal and sewage systems, coupled with government investment in medical infrastructure, will be key to avoiding pandemic outbreaks of diseases and for improving general living standards.”

Europe, Middle East and Africa health and sanitation rankings
Almost half of the 30 top-scoring cities surveyed are in Western Europe. Helsinki has the highest score for the region, at position 3 with a rating of 128.5. Oslo, Stockholm and Zurich all rank 6th with a score of 125. London is ranked 63 with a score of 111.2.

Most Eastern European cities have relatively low scores, except for Prague in the Czech Republic which scores highest, at position 75 with a score of 101.3. Russian cities have the poorest scores in this area. Moscow, St. Petersburg, Novosibirsk and Kazan take positions 201,184, 182 and 174 respectively with ratings of 43.4, 50.5, 51.1 and 54.

Abu Dhabi and Dubai are the highest-ranking Middle Eastern cities and share position 58 with a score of 112.9. African cities typically rank in lower positions than their European and Middle Eastern counterparts, with many appearing in the 20 bottom-scoring cities.

“The availability of public and private hospital care, together with modern medical infrastructure, means healthcare standards in Europe are generally very high. Medical provision in the Middle East, especially the United Arab Emirates, has also benefited from substantial government investment,” said Mr. Parakatil. “In impoverished countries - where medical care and sanitation are often poor - it can be advisable for expatriates to seek private treatment.”

Americas health and sanitation rankings
All of the Canadian cities covered by the survey appear in the top 25 rankings for health and sanitation. Calgary is followed by Ottawa in position 4 with a score of 127.2. Montreal and Vancouver both rank in 10th place (score 123.7). Toronto is at position 21 with a rating of 122.4.

In the US, Honolulu ranks highest followed by Minneapolis in 5th place scoring 125.7. Boston, Lexington and Pittsburgh rank joint 10th with a score of 123.7. Mexico City scores poorly at position 211 with a rating of 37.7; geographical issues and a high level of air pollution explain this low ranking. Other low-scoring cities in North America are Atlanta and Houston, in positions 96 and 103 respectively with scores of 92.3 and 85.2.

Mr. Parakatil said: “Growing traffic congestion, industrial plants and other pollutants reduce air quality in some American cities, which may undermine the otherwise pleasant living standards.”

Cities in Central and South America tend to feature much lower in the rankings than those in North America. San Juan in Puerto Rico ranks highest in 67th place (score 108.9). Port Au Prince is the lowest-ranking city in the region, in position 212 with an index of 34.

Asia-Pacific health and sanitation rankings
Auckland and Wellington in New Zealand rank in joint 18th place, with a rating of 123.1. All the Australian cities covered by the survey rank higher than New York, the base city. Adelaide is the highest-scoring city in Australia at position 35 (score 119.5) while Sydney is the lowest in 62nd place (score 111.3).

Japan is home to the five highest-rated cities in Asia. Katsuyama leads in 9th position with a score of 123.8, followed by Kobe and Omuta in joint 25th place (score 122). Tokyo, Nagoya and Osaka come in joint 53rd place and score 113.5.

Elsewhere in this region, Singapore ranks in 50th place with a score of 114, while Hong Kong is at position 117 and scores 80.8. Shanghai and Beijing are China’s highest and lowest-ranking cities in 134th and 166th place respectively (scoring 73.8 and 60.3). Modernisation of medical infrastructure has improved living standards in these Chinese cities. However, air pollution and inadequate waste removal and sewage systems are still a concern – particularly in Beijing.

Indian cities score relatively poorly for health and sanitation, with scores ranging from 52.8 for Chennai (position 177) to 38.2 for Mumbai (position 209). Most Indian cities are densely populated with poor waste removal and sewage systems. These issues, combined with increasing air pollution, contribute to their relatively low ratings.

“Expatriates on assignment in some locations - for example Africa, the Middle East and some parts of Asia, Europe and Latin America - can face harsher living conditions and lower standards of medical care and facilities than they are accustomed to,” commented Mr Parakatil. “The threat of infectious diseases and environmental risks are very real in some cities and should be taken into account. Migration and mobility can exacerbate the transmission of diseases, and this should be a top concern for employers managing international assignments.”

Rankings for overall quality of living
Mercer’s overall ranking for quality of living has revealed that Zurich again ranks as the world’s top city, with a rating of 108.1. The city narrowly out-ranks Geneva, which scores 108. Vancouver and Vienna follow in joint third place and score 107.7.

Cities in Europe and Australiasia continue to dominate the top end of the rankings for overall quality of living. Auckland and Düsseldorf share joint fifth place and score 107.3 points. Frankfurt and Munich follow with scores of 107.1 and 106.9 respectively. Bern and Sydney both score 106.5 points and share joint 9th place.

The analysis is based on an evaluation of 39 quality of living criteria for each city including political, social, economic and environmental factors, personal safety and health, education, transport and other public services.

Baghdad remains the world’s least enticing city for expatriates with a score of 14.5. Other low-scoring cities for overall quality of living include Brazzaville in Congo (29.5), Bangui in the Central African Republic (30.6) and Khartoum in Sudan (31).

Mr. Parakatil concluded: “In recent years, the gap between low-ranking and high-ranking cities has widened. While standards have improved in some regions, there remains a stark contrast between those cities where overall quality of living is good and those experiencing political and economic turmoil.”


TOP 25 MOST POLLUTION CITIES

No. 25: Port Harcourt, Nigeria
Mercer Health and Sanitation Index Score: 46.8

Problems with waste disposal continue to contaminate the rivers of Nigeria, especially affecting residents in Port Harcourt. The area lacks strategies for preventing oil spills and contamination, and the clean-up methods after disasters require significant improvement.

No. 24: New Delhi, India
Mercer Health and Sanitation Index Score: 46.6

You'll find just about everything except marine life in New Delhi's Yamuna River. Garbage and sewage flow freely, creating a rich environment for the growth of water-borne diseases contributing to extremely high rates of infant morbidity.

No. 23: Maputo, Mozambique
Mercer Health and Sanitation Index Score: 46.3

Located on the Indian Ocean, the Eastern African country of Mozambique suffers from lack of sanitation processes--specifically the lack of a solid waste removal system as well as sewage treatment. The capital city of Maputo feels the worst of these consequences. Piles of garbage line the streets, and the sewage in the river is visibly thick.

No. 22: Luanda, Angola
Mercer Health and Sanitation Index Score: 45.2

Located on Angola's coast with the Atlantic Ocean to its west, Luanda is the city's largest port. Studies from several agencies, including UNICEF and Oxfam, suggest that a large portion of the population in Luanda drink water of poor and in some cases dangerous quality. Much of this portion of the population lives in settlements called musseques built on hardened waste. Water arrives to these settlements in private tanks, which consistently show concerning levels of chlorine. Water conditions such as this only served to intensify a cholera epidemic in 2006.

No. 21: Niamey, Niger
Mercer Health and Sanitation Index Score: 45

The Niger River Basin, home to Niger's capital city, Niamey, is a cesspool of pollution and waste. In a country with a total population just under 14 million, the healthy life expectancy at birth is 35 for males and 36 for females, thanks in part to poor sanitation and drinkable water. About one in four children raised here will die before age 5, the World Health Organization says.

No. 20: Nouakchott, Mauritania
Mercer Health and Sanitation Index Score: 44.7

Located in northern Africa, Mauritania sits on the North Atlantic Ocean between Senegal and the western Sahara. Nouakchott, the country's capital, is located on the western coast. Due to the desert-like climate, droughts and water management are critical issues for the country. Oil deposits off the coast and iron ore serve as the country's main industrial opportunities, but the majority of the population depends on farming.

No. 19: Conakry, Guinea Republic
Mercer Health and Sanitation Index Score: 44.2

Life expectancy, infant morbidity, and the percentage of the population that has access to safe water are shockingly low for Conakry, the capital city of Guinea Republic. Previous World Bank initiatives in Conakry focused on water supply and sanitation have not proved very successful

No. 18: Lome, Togo
Mercer Health and Sanitation Index Score: 44.1

Lomé, the capital city of Togo, sits in the southwest near the country's border with Ghana. Water and waste management has become one of the country's main problems as a large percentage of the population continues to live without access to improved water or sanitation. Extensive flooding in Togo only magnifies the problem.

No. 17: Pointe Noire, Congo
Mercer Health and Sanitation Index Score: 43.8

The second Congolese city on the list suffers from many of the same pollutants as its neighboring city, Brazzaville--air pollution from vehicle emissions and unbridled water contamination from the mass unloading of raw sewage in the city's water supply. According to the CIA WorldFactBook, about 70% of the Congolese population live either in Brazzaville or Pointe Noire or along the railroad track, which connects the two.

No. 16: Bamako, Mali
Mercer Health and Sanitation Index Score: 43.7

Bamako, the capital of Mali, and the country's largest city is situated on the Niger River. Rapid population growth, coupled with unbridled urban pollution, are among the many health and sanitation challenges facing the capital. Several droughts have caused migration from rural areas to the urban environment of the capital, which has only led to more water management issues.

No. 15: Ouagadougou, Burkina Faso
Mercer Health and Sanitation Index Score: 43.4

A recent World Bank study shows that cancer and respiratory disease rates are up due to increased air pollution in Ouagadougou, the capital of Burkina Faso. Increased levels of benzene, from motorbike petrol, and increased dust particles, amounting on average to nearly three times the WHO-stated healthy limit, contribute to these rising numbers. In a city characterized by a rainy season, waste management and sanitation also face challenges.

No. 14: Moscow, Russia
Mercer Health and Sanitation Index Score: 43.4

In a city where you can pay $3,000 a month for an apartment that doesn't even have clean running water, Moscow also has troubling levels of air pollution, which present a daily strain on lung health.

No. 13: Bangui, Central African Republic
Mercer Health and Sanitation Index Score: 42.1

Bangui, the capital of Central African Republic, faces water and sanitation challenges similar to its neighboring countries' capitals. A rapidly increasing population, coupled with a lack of adequate waste and water management, places stresses on the capital city.

No. 12: Dar es Salaam, Tanzania
Mercer Health and Sanitation Index Score: 40.4

The capital of this east African country continues to grow populationwise, putting a stress on the city's sanitation programs. Solid waste, entering the Msimbazi River, contributes to widely spread infectious diseases among the population

No. 11: Ndjamena, Chad
Mercer Health and Sanitation Index Score: 39.7

Ndjamena, the capital city of Chad, faces multi-faceted water management challenges. A main site for concern here is the Conventional Basin of Lake Chad, upon which the country's main fisheries greatly depend. Also noteworthy--the continual influx of population growth, accelerated by the migration of neighboring Sudanese refugees from Darfur, which places an unexpected strain on water management.

No. 10: Brazzaville, Congo
Mercer Health and Sanitation Index Score: 39.1

Air pollution from emissions, lack of potable water and the contamination of the city's water from raw sewage contribute to the laundry list of health and sanitation concerns for Brazzaville, the capital of Congo. Each of these press upon the life expectancy of the local population.

No. 9: Almaty, Kazakhstan
Mercer Health and Sanitation Index Score: 39.1

The marriage of petroleum-based industry and insufficient safeguards against pollution sets the stage for an environmental crisis in this city. Toxic waste dumps require a huge price tag for improvement and an even larger price for neglect.

No. 8: Baghdad, Iraq
Mercer Health and Sanitation Index Score: 39

Poor water quality in Baghdad threatens to exacerbate the the transmission of water-borne diseases in the city. Fatal outbreaks of cholera struck several provinces of the country, including Baghdad from August 2007 to December 2007. The United Nations Environment Programme (UNEP) also says air pollution, resulting from burning oil and aggravated by war, is cause for concern.

No. 7: Mumbai, India
Mercer Health and Sanitation Index Score: 38.2

India's government hopes to transform Mumbai back into a burgeoning metropolis after recent economic decline. A recent private-sector report, Vision Mumbai, proposed changes in infrastructure, pollution control and economic growth strategy, which contributed to the seeking of approximately $1 billion of aid from Indian government.

No. 6: Addis Ababa, Ethiopia
Mercer Health and Sanitation Index Score: 37.9

Addis Ababa, the capital of Ethiopia, faces one of the worst sanitation problems on both the continent of Africa as well as in the world. The lack of adequate sanitation programs results in infant mortality, low life expectancy and the transmission of water-borne diseases

No. 5: Mexico City, Mexico
Mercer Health and Sanitation Index Score: 37.7

Mexico City, the capital of Mexico, and the capital of North American air pollution, estimates unhealthy ozone emissions nearly 85% of the year. Mexico's geographical location--in the center of a volcanic crater and surrounded by mountains--only serves to lock in the air pollution, causing smog to sit above the city.

No. 4: Port au Prince, Haiti
Mercer Health and Sanitation Index Score: 34

The country's politically inspired violence and corruption are well documented. Equally dangerous: its air and water. Serving as one of the main ports on the island of Hispaniola, Port au Prince is central to Haiti's economic development. A lack of pollution controls, however, contributes to the widespread environmental problems confronting the Haitian city.

No. 3: Antananarivo, Madagascar
Mercer Health and Sanitation Index Score: 30.1

Madagascar, located off of the southeastern coast of Africa in the Indian Ocean, makes this year's list with its capital city, Antananarivo. Well known for its variety of unique flora and fauna, Madagascar has often been referred to as the world's eighth continent, but the effects of the human population are quickly leaving their footprint

No. 2: Dhaka, Bangladesh
Mercer Health and Sanitation Index Score: 29.6

Located in southern Asia, between Burma and India, Dhaka, the capital of Bangladesh battles with the constant threat of water pollution. Surface water is often thick with disease and pollutants from the use of commercial pesticides. With an estimated 150 million people living in a relatively small area, cleaning up the problem won't be easy.

No. 1: Baku, Azerbaijan
Health and Sanitation Index Score: 27.6

Surrounded by Iran, Georgia, Russia and Armenia on the Caspian Sea, Azerbaijan has long been an oil hub. As a consequence, Baku, the capital, suffers from life-threatening levels of air pollution emitted from oil drilling and shipping
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