my study in computer science

  PM2.5 Air Pollutants: Tiny Particles That Can Have Huge (Health) Consequences HIGHLIGHTS: PM2.5 air pollutants can be inhaled deep into the respiratory system and lungs. The effects of this include irritation, a stinging nose, the buildup of phlegm, coughing, sneezing, asthma attacks, cardiac arrest, ischemic strokes and, most dangerous of all, lung cancer. Outdoor exercise should be avoided during periods of smog and high air pollution, as strenuous activity or heavy breathing may lead to increased levels of PM2.5 pollutants being ingested into the respiratory system and lungs. N95-protective masks must be worn correctly, ensuring that it fits tightly on the face. Also, previously worn masks should be thrown away instead of being used again. The World Health Organization (WHO) has set an average rate for PM2.5 air pollutants, stating that if there are over 25 micrograms per cubic meter, it is seen as being dangerous to health. At the same time, Thailand has put the levels at whi...

  TYPES OF PLASTIC - A COMPLETE PLASTIC NUMBERS GUIDE  W hether we like it or not, we are all living in a world full of various types of plastics. If you open the fridge or simply look around, you will spot dozens of plastic items that you use every day. Have a closer look and you will notice a recycling symbol at the bottom, top, or side of each plastic object. This recycle sign looks like a triangle of chasing pointers with a number from 1 to 7 inside it. The recycle symbol provides important data about the used resin and recyclability of the item. Keep in mind that the plastic recycle code on the object does not surely mean that the item can be reprocessed. It just shows the information about the recycling possibility. It seems almost impossible to escape plastic in the modern consumer world. Still, we can make a better choice by choosing safer for our health and environment types of plastic. Therefore it is crucial to understand the potential harm of the elements of differ...