空气污染指数 Air Pollution Index 空气污染指数(Air Pollution Index, API)是反映空气污染物,如最常见的氮氧化物、悬浮粒子(来自汽车)和二氧化硫(来自工厂)水平的一个指数,一般是根据实际污染物观测值并用特定公式算出。指数常被用来对公众发布“空气品质日报”,让人们知道目前的空气质量,进而更妥善地规划行程和工作。
When public records began in 2000, Irvine’s air quality index (AQI) averaged 68 (“moderate”) Irvine AQI has improved dramatically since then, largely as a result of the 1990 amendments to the Clean Air Act that increased air quality monitoring, emission control, and enforcement. In 2019,...
1. Air quality is measured with the air quality index The air quality index, better known as AQI, as we know it today wasreleased in 1999, according to AirNow.gov. It has gone through several updates over the years, but the goal has always been the same – to offer people an easy-t...
Air Quality Index (AQIBackground and Aim: The association between particulate matter (PM) and cardiovascular diseases (CVD) was shown in the mid-1990 through several epidemiological studies. Increased hospital admissions of patients with cardiovascular and respiratory problems in days when, due to ...
The Taiwan Air Quality Monitoring Network (TAQMN) was founded in 1990 when it opened 19 monitoring stations. This number increased to sixty-six in 1993 and to 72 in 1998. The six main pollutants whose levels are recorded are nitrogen dioxide (NO2), carbon monoxide (CO), ozone (O3), sul...
Clean Air Act amendmentsin 1990 directed the EPA to regulate 189toxic pollutantsat their source. The scope of these provisions extended beyond larger-scale industries to businesses such as dry cleaners and photocopy stores. Pursuant to Title V, the agency developedperformance standardsfor pollutants ...
Local air quality co-benefits can provide complementary support for ambitious climate action and can enable progress on related Sustainable Development Goals. Here we show that the transformation of the energy system implied by the emission reduction pledges brought forward in the context of the Paris...
To evaluate the model’s performance in simulating the atmospheric abundance of several key pollutants, we have used surface PM10concentrations derived from the Air Quality Index (AQI) in Kuala Lumpur, Malaysia and the observed CO and O3levels from the World Meteorological Organization (WMO) Global...
Between 1990 and 2007, road transport has reduced VOCs by 60%, as a result of using the three-way catalytic converter and the improvement of diesel quality (EEA – APE 004, 2010). Among the sectors of fuel combustion processes that produce PAHs, residential heating sector is the most ...
Assessing performance of the Healthcare Access and Quality Index, overall and by select age groups, for 204 countries and territories, 1990–2019: a systematic analysis from the Global Burden of Disease Study 2019. Lancet Glob. Health 10, 1715–1743 (2022). Article Google Scholar WHO. WHO ...