Particle matter is one of the criteria air pollutants which have most considerable effect on human health in cities. Its legislation and regulation are mostly based mass. We showed here that total number particles particle concentrations different size fractions seem to be efficient quantities for quality monitoring urbanized areas. concentration (N) measurements were realized Budapest, Hungary...

Abstract The eigenvectors of the particle number operator in second quantization are characterized by block sparsity their matrix product state representations. This is shown to generalize other classes operators. Imposing yields a scheme for conserving that commonly used applications physics. Operations on such structures, rank truncation, and implications numerical algorithms discussed. Expli...