Step 1: Define Primary PollutantsPrimary pollutants are substances that are directly emitted into the atmosphere from various sources. They are not formed by any chemical reactions in the atmosphere but are released as a result of human activities or natural processes. Step 2: Provide Examples of ...
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...
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 ...
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...
Step-by-Step SolutionStep 1: Define Pollutants Pollutants are defined as contaminants that are introduced into the natural environment beyond permissible limits. They can negatively impact the environment and h
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...
Why are poor communities more polluted?health inequities(不公平).“There hasn't been clearA. Poor people like living near factories.evidence of how these differences have evolved overB. Their lifestyle produces more pollutants.time,” says economist Jonathan Colmer of theC. Their neighborhoods ...
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. ...
Widely considered to be one of the most dangerous contaminants, particulates can take the form of PM10, which are 10 microns or less in diameter, or PM2.5, which are a quarter of that size or less. These latter pollutants are particularly damaging, since they are roughly 30 times thinner...