The Zipcode for Poland is. Poland is a village of Mahoning, Ohio in the Great Lakes region of the USA. It is located about 141 miles east-northeast of OH's capital city of Columbus.In the most recent US census the population of Poland was 2548. City/Zip code State.oland is a village of Mahoning, Ohio in the Great Lakes region of the USA. It is located about 141 miles east-northeast of OH's capital city of Columbus. In the most recent US census the population of Poland was 2548.
pH. The pH is a measure of the acidity of the water. The pH scale goes from 0 to 14, where pH 7 is neutral. If the pH is above 7, the water is basic; if it is below 7 the water is acid. The optimum pH for pool water is 7.4, since this is the same as the pH in human eyes and mucous membranes. A pH of 7.4 also gives good chlorine disinfection.
Chlorine is a chemical that prevents bacterial growth in stationary water. Itâs used to sanitize sewage and industrial waste. Itâs also an active ingredient in several cleaning products. Chlorine poisoning can occur when you swallow or inhale chlorine. Chlorine reacts with water â including the water in your digestive tract â to form hydrochloric acid and hydrochlorous acid. Both of these substances are extremely poisonous to humans. You may be most familiar with chlorine thatâs used in pools.