Criteria pollutantsCriteria pollutants A list of air pollutants identified in the 1970 Clean Air Act Amendments deemed to be critical in controlling air pollution and for which National Ambient Air Quality Standards (NAAQS) were established. Criteria pollutants include sulfur dioxide (SO2), nitrogen ...
Population exposure is quantified based on exceedances of the Pollutant Standards Index (PSI), which allows assessment of air quality conditions based on six criteria pollutant concentrations and classifies air quality at different levels (from good to hazardous)21. The PSI is defined as: where , ...
NCS foundational principles are criteria (nature-based, sustainable, climate-additional, measurable, and equitable) that provide a working definition of NCS based on the existing literature. This working definition enables more effective and productive NCS action by clarifying the boundaries of the NCS ...
They all require zero leak criteria for permanently abandoned wells. However, even though their objectives are the same and they are supervising sectors within the same geographical area, the authorities have different requirements to well barriers in permanent plug and abandonment operations, ...
According to the criteria of FC ≤ 0.83 or FC ≥ 1.2 and P value < 0.05, top 15 differential proteins in the HBE group were selected, of which 6 were up-regulated and 9 down-regulated. Among c-fos silenced HBE groups, 4 proteins were up-regulated and 11 were down-regulated in top ...
Based on the criteria as |log2 fold change| > 1.5 and FDR (False Discovery Rate) < 0.001, 1041, 346, and 1189, DEGs were identified at three sampling time points (D0.5, D2 and D7) (Fig. S6), respectively. The amount and types of DEGs varied considerably at these three ...
pollutants The Group formulated and accelerated the implementation of the action plan of natural gas renovation according to relevant key indicators as set out in the Standardised Evaluation Procedures for the School Canteens in the Higher Education Institutions of Henan Province (《河 南省高等學校標準...
“Since the 1980s, total toxic releases and air emissions of criteria pollutants in the U.S. have fallen sharply, even as population and GDP have grown. From 2010 to 2020, Responsible Care facilities within the ACC membership have reduced...
It employs six global water quality indices (WQIs) and contrasts the results with Bangladesh's Environmental Quality Standard (EQS) and the Department of Environment (DoE) criteria. The WQI models used are the Weighted Arithmetic WQI (WAWQI), British Columbia WQI (BCWQI), Canadian Council of ...
Table 1 Determination criteria for common EKC shapes. Full size table Based on the determined shape, the inflection points of the curve can be computed. When GDP per capita passes through these points, the direction of change in environmental pollution will overturn, such as from negative to pos...