Air pollution is a mixture of solid particles and gases in the air. Car emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles. Ozone, a gas, is a major part of air pollution in cities. When ozone forms air pollution, it’s also called smog.

Air pollution is a type of environmental pollution that affects the air and is usually caused by smoke or other harmful gases, mainly oxides of carbon, sulphur and nitrogen. In other words, air pollution is the contamination of air due to the presence or introduction of a substance which has a poisonous effect.

Air pollution can also cause headaches, dizziness, and nausea. Long-term health effects from air pollution include heart disease, lung cancer, and respiratory diseases such as emphysema. Air pollution can also cause long-term damage to people’s nerves, brain, kidneys, liver, and other organs.

Fact 1: An average American breathes 2 gallons of air per minute, which means around 3400 gallons of air each day. Fact 2: Inhaling air pollution takes away at least 1-2 years of a typical human life. Fact 3: It has effects as small as burning eyes and itchy throat to as large as breathing problems and death.

Cleanest Cities | State of the Air

Ranked: America’s Cleanest Cities (Number 1 is the best; the overall scores on a scale of 10 are listed after each location)

• Long Beach, California (7.02)
• San Diego (6.58)
• Sacramento, California (6.41)
• Tampa, Florida (6.35)
• Charlotte, North Carolina (6.09)
• San Jose, California (5.75)
• Oakland, California (5.73)

‘The figures show that Paris is still above London as the most visited city in the world’, adding:’Paris is safer than London, where there is four times as much crime. Paris is also safer than New York if you compare crime data. ‘

However, Paris has three of the world’s top ten most-visited tourist attractions, (the Eiffel Tower, the Louvre and the Palace of Versailles). London has none. In terms of culture, London has the advantage. The city has 240 museums to Paris’ 153.

Most Dangerous Cities in Europe

• Athens, Greece.
• Naples, Italy.
• Glasgow, Scotland.
• Tallinn, Estonia.
• Florence, Italy.
• Milan, Italy.
• Grozny, Russia.
• Marseille, France. The list would be incomplete if we didn’t mention Marseille, a port city in southern France.

The countries with the ten highest crime rates in the world are:

• Venezuela (84.36)
• Papua New Guinea (80.04)
• South Africa (77.29)
• Afghanistan (76.97)
• Honduras (76.65)
• Trinidad and Tobago (72.43)
• Brazil (68.31)
• Guyana (68.15)

For 2020, the most dangerous, extreme-risk countries are mostly located in Africa and the Middle East, including places like Libya, Syria, Iraq, Yemen and Afghanistan. Mexico—which has recently been in the news due to the high-profile murder of an Americans—has a range of ratings, from moderate to high risk.

Safest destinations to travel in Europe

• Nowadays safety largely dictates where you will want to spend your holiday, so we have selected for you the safest European destinations.
• Basel.
• Geneva.
• Vienna.
• Zurich.
• Porto.
• Bern.
• Zagreb.

Quality of Life in Paris. Cost of Living in Paris….Safety comparisons Paris vs New York, NY.