• Matter and energy

    Buying a water purification system

    In the last decade, the number of products designed to reduce contaminants in tap water has expanded significantly. In this article, I summarized a quick lesson on home water purification systems. Know the TASTE. Does your water taste funny or smell bad? Does it look reddish or leave Look for products that tackle specifically your problem.Filters reduce chemical contaminants, some metals, parasites, sediment. Provide about 1/2 to 1 gallon of water a minute. DEVICE. Choose a style that fits your needs: Pitchers with : Inexpensive. No installation; frequent filter changes (every 40 gallons). Faucet devices: Faucet with builtin filter — may require pro to install; filter changes every 100 gallons…

  • Atmosphere, climate, and weather

    The Chinese Water

    For visitors, China’s water problem becomes apparent upon entering the hotel room. The smell of a polluted river might emanate from the showerhead. Need to quench your thirst? The drip from the tap is rarely potable. Can you trust the bottled water? Many Chinese don’t. What about brushing your teeth?s Suggested by the government’s own figures, more than half of the country’s largest lakes and reservoirs were highly contaminated by 2011 that they were no longer suitable for human consumption. China’s more than 4,700 underground water-quality testing stations show that nearly 3/5 of all water supplies are “relatively bad” or worse. Despite Chinese economic growth is striking, the quality of…

  • Atmosphere, climate, and weather

    Clean Air Project in Europe

    It is not surprising to see the bleak pictures from Beijing clearly showing what happens when protection of air quality is not taken seriously. Good air means good quality of life. As a matter of fact, every person breathes in around 15,000 litres of air per day.   Although the air quality in Europe is better than that in China, Europeans should continuous their effort to keep their air clean. The air in Europe contains a lot of nitrogen oxide and fine particulate matter that make people sick. That’s why nine European NGOs are now collaborating on a new project called Clean Air. They are mainly focusing on transportation and…

  • Atmosphere, climate, and weather

    Air Quality – How’s it in Europe?

    In March 2015, BUND (Friends of the Earth Germany) has published “Sootfree Cities”, a ranking which graded the efforts of 23 major European cities to improve air quality. Upon this ranking, it is highlighted how European cities have been actively combating air pollution in the transport sector. Meanwhile, the local air quality actions are still not enough and cities are also exposed to pollution they cannot control. These emissions are regulated at national or EU level where inadequate actions against air pollution are seen.   The city of Zurich has become the winner, due to a mixed policy that includes a strong commitment to reduce pollution from vehicles, the promotion…

  • Life

    Special Treatments for Pollutants

    Pollutants come into different categories. Despite most air purifiers help remove pollutants, not every cleaner has the ability to tackle each pollutant in the same manner. Let’s look into the different type of pollutants in the air around us. Pet Dander Pet dander is a powerful allergen that can trigger severe reactions in to allergy-sufferers. The most common treatment would be an air purifier that contains a type of HEPA filter. True HEPA filters are certified and best known for removing allergens of all kinds, especially pet dander. Dust, Dust Mites and Pollen If you want to remove more solid particles floating around in the air like pollen or dust…

  • Ecosystems

    Polar bears and their missing homes

    What do you think about the picture?  Polar bear doing yoga? This is not a picture for fun, but indeed, it’s a heart-breaking one that tells a big story. The seawater surrounding the bear was once a piece of huge iceberg and the homeland for polar bears. But since the recent century, the Earth’s temperature has increased 0.8%, declaring the age of global warming. Humans are the main cause of global warming. We produce excessive CO2 that traps the heat inside the atmosphere. We cause global warming but we’re not the only species that have to bear the consequences. Hotter temperatures melt the ice. Polar bears have evolved for a life…

  • Matter and energy

    How to Remove Dust from the Air?

    Dust in the air can worsen air flows and lead to more problems. The best way to remove these dust particles is with an air purifier. Here are some features to look for when selecting the appropriate air purifier. Air Filters There are a variety of filters available. The HEPA (High Efficiency Particulate Air Filters) are most recommended for their ability to remove small particles from the air. HEPA filters are also very useful for households with allergy and asthma problems. Performance Of course, you want to ensure that the purifier is able to capture as much dust from the air as possible. Check the label carefully to determine the…

  • Matter and energy

    How to purify your water

    What is the best way you think to make your water clean? You may think that boiling is pretty much enough to kill all the bacteria. Well, you could just boil the water but this wouldn’t get the sand and other particles out of the water. So the best way purify your water is to use a filter. It gets the particles, dirt and some of other “unseen” chemicals out of your water. You can try homemade a simple water filter.  Use an empty bottle and turn the bottle upside down (with the cap down down). Then fill in the bottle with the materials in this order: – pebbles – Sand…

  • Matter and energy

    Water Solutions – When it comes to TASTE & QUALITY

    Water is a necessity of life and while water can come from many sources including bottled, municipal systems, rain water or ground water from wells or springs, not all water is considered potable and safe to drink. How safe your water is depends on several factors and what standards it is measured against. If you have any doubts as to the health of your water supply, ask your water system provider for a copy of their most recent water report. However, when it comes down to taste, even treated water can leave an undesirable aftertaste. Fortunately, there are still simple solutions for making tap water drinkable. And to our surprise,…

  • Matter and energy

    Water Solutions – When it comes to TASTE & QUALITY part2

    Other solutions for treating your water taste and quality are: 2.  Conserve your own water Whether you are trying to conserve water because your supply is limited or simply you want to save money because you are on metered water rates, there are practical ways to save water. Remember, while some may seem trivial every gallon of water not used means more money in your pocket. 3.  Activated Carbon Filters: Making Tap Water Safe and Pleasant Even though your tap water from a municipal or public water system is treated and safe to drink, it doesn’t guarantee water that is pleasant to drink. Treated drinking water that meets water quality…