PubMed · 48178
The source did not provide an abstract. Follow the original record for more information.
Explore connections, maps & timelines
1975-02-08. Editorial: Lead in petrol.. https://pubmed.ncbi.nlm.nih.gov/48178/
Cite the original work for its findings. Save a collection to share your selection of sources.
KEEP EXPLORING
Capturing the spatiotemporal distribution of pollutants in industrial parks remains challenging for regional air quality models because of their coarse resolution (3 km), resulting in uncertainties in local emission quantification. To address this, we developed the Integrated Multiscale Air Quality Modelling System for Industry (IAQMS-Industry), coupling the regional Nested Air Quality Prediction Modelling System (NAQPMS) with a city-scale chemical transport model. This framework integrates point-source locations and Gaussian plume dispersion to simulate particulate matter with a diameter smaller than 2.5 micrometres (PM2.5) at 100 m resolution. Applied to the Beijing Yi Zhuang and Tangshan industrial parks and evaluated against observations. The coupled model achieved a normalized mean bias (NMB) ranging from 3.1 % to 6.2 %, improving upon NAQPMS (-16.9 % to -7.7 %). Spatial analysis revealed that coarse regional grids underestimated the PM2.5​ concentrations at industrial sites by smoothing gradients, whereas IAQMS-Industry successfully resolved spatial patterns. Industrial point emissions accounted for 22.9 %-26.4 % of PM2.5 in the coupled model, which was significantly greater than the regional model estimates of 1.6 %-13.7 %. These findings indicate that regional models overestimate pollutant dispersion processes in industrial parks while underestimating local industrial impacts. By explicitly resolving point-source dynamics and linking them to regional transport, IAQMS-Industry provides a robust tool for designing targeted emission controls in industrial cities and balancing local air quality improvements with minimized regional pollution outflow. This study underscores the necessity of multiscale modelling for accurate source apportionment and informed environmental governance in industrial zones.
During the past three decades, industrial expansion in Japan has been remarkable, resulting in a numerous number of chemical substances got synthesized. Unfortunately, our living environment has concomitantly been polluted with such substances released through industrial activities and our daily lives, and health injuries have occasionally occurred in the human population. Although the critical conditions in the 1960s were overcome by the countermeasures we took, the potential for environmental pollution still remains. In the present social and economical situation, the management of environmental pollutants should be decided depending upon more quantitative and predictive evaluation of their health effects. In this paper the author tries to evaluate the relation of air pollution to chronic bronchitis, bronchial asthma and pulmonary cancer from a quantitative point of view.
It is out of the question that alloarthroplasty of the upper angle joint must today belong to the therapeutic repertoire of the orthopedic surgeon. The anatomical situation of the upper ankle joint brings considerable problems for the total replacement and then also for the surface replacement. At the time being models are already available, which, seen on the whole, have already brought quite reliable results. Requirement for the success of the operation is the technically perfect insertion of the surface replacement or of the total joint and furthermore the insertion of the replacement under appropriate conditions, whereby the operation in an aseptive room ("Reinraum") has proven itself effective also on the upper ankle joint.