61. What are Primary air pollutants?Primary air pollutants are those which are emitted directly into the atmosphere and remain in the form in which they are emitted Primary air pollutants are produced in air by the interaction between two or more primary pollutants or by a reaction between ...
There are no mechanisms in place to learn about local patterns that influence actual exposure. Without this critical data on the air people breathe, researchers cannot really understand the mechanisms of how air pollutants impact health. The thesis concludes with a series of specific recommendations ...
What can be inferred from this A. Sometimes natural air pollutants can purify air.B. Natural air pollutants are harmful to people.C. There are some chemical reactions in the air.D. Air pollutants move from air to water or soil. 相关知识点: 试题来源: 解析 A [解析] 本题为语用理解题中...
The nonprofit Environmental Working Group (EWG) detected some 260 pollutants in public water supplies in 42 states and faulted the U.S. Environmental Protection Agency (EPA) for ___42___ to establish standards on so many of the pollutants - from industry, agriculture, and urban rivers - that...
What Is Air Pollution?Air pollution is normally defined an air that contains one or more chemicals in high enough concentrations to harm humans,other animals,vegentation or materials.There are two major types of air pollutants.A primary air pollutant is a chemical added directely to the air tha...
Air pollution is caused by humans introducing chemicals and other materials into the air. These pollutants are dangerous to both the environment and our own health. Air pollution has a wide range of effects, from respiratory disease to climate change. Un
Together they are working on a project that draws on the growing field of nanotechnology(纳米技术) to create a fabric 2 that can break down pollutants in the air. "In a sense, it"s a recycling of an existing technology that exists in toothpaste and sunscreen," Professor Storey explains. ...
That's a significant advancement, the researchers note, since knowing what harmful elements are in the air is critical to finding ways to reduce them, added Gentner. "If you develop anair pollutioncontrol policy based on less specific information for organicaerosol, there may be much more variab...
Q1: What are the primary sources of air pollution?A1:English: The primary sources of air pollution include vehicle emissions, industrial processes, power plants, and natural sources such as wildfires and volcanic eruptions. Major pollutants include carbon monoxide, sulfur dioxide, nitrogen oxides, and...
Primary pollutantsare those gases or particles that are pumped into the air to make it unclean. They include carbon monoxide from automobile (cars) exhausts and sulfur dioxide from the combustion of coal. Secondary pollutants:When pollutants in the air mix up in a chemical reaction, they form ...