Wolf Hawley (peenquit37)

This paper makes a first empirical attempt at estimating the effects of environmental regulation on air pollution, total factor productivity (TFP), and factor structure based on a quasi-natural experiment method using a novel dataset of 216 prefectural-level cities during the years 1998-2016 in China. Specifically, we are focused on the policy impact of the listed key environmental protection (KEP) prefectures which subject to more stringent environmental regulations than non-KEP prefectures. Our empirical results show that the PM2.5 intensity, environmental performance, and TFP of the KEP prefectures are significantly lower than the non-KEP prefectures. The environmental policy also affects the factor structure of KEP cites. Heterogeneity analysis indicates that the policy significantly lowered the PM2.5 for central and western cities while it is unclear for eastern cities. Our findings also document that the policy effects are unclear in the long term. Various robustness checks confirm the internal validity. These estimation results are instructive to the policymakers. We suggest that the central government should measure the effectiveness of policies within 5 years of policy formulation. Governments at all levels should make targeted adjustments based on actual impact effects. The central government should be granted local governments more speaking power and flexibility in policy implementation when formulating environmental regulatory policies. Otherwise, the central government also needs to improve the communication medium with provincial governments.Karst aquifers represent the most important renewable sources of drinking water. Because anthropogenic influences threaten the integrity of karst aquifers, it is important to determine the soil erosion and karst denudation rates. In order to study the complex signs of degradation processes of the karst, a paleodoline (paleo-polje) was selected near to the county seat Veszprém, Hungary. It was found that gamma radiation measurements can be a useful tool to detect the level of soil erosion since the low gamma radiation indicates the surface proximity of the carbonate bedrock. The level of gamma radiation also predicts the potential agricultural usability of a site. Both the patterns of contamination and the erosion attack zone are strongly defined by the relief. The gullies and the deepest parts of the karstic landscape are the traps of organic materials and pollutants. The amounts of 40K and its decay products originate from the covering sediment and negatively correlate with the soil depth. In the case of covered karsts, the measuring of the concentration of radionuclides and field gamma-ray dose measurement together can characterize the general horizontal and vertical trends of soil erosion, the potential land use, and the vegetation.The development of human activities along the Atlantic coast is responsible for the chronic pollution of the environment with organic and inorganic contaminants. In recent years, environmental regulations such as the MSFD (2008/56/EC) and the OSPAR commission have been developed to preserve coastal environments, giving rise to studies in aquatic biomonitoring. One of them is to use biomarkers to observe the pollutants impact on coastal species such as the bivalve Mimachlamys varia. A defence biomarker was considered in this research to study metal accumulation, with metallothioneins (Mts) involved in the uptake, storage and excretion of metals. To achieve this, bivalves were collected in March 2016 in seven sites along the French Atlantic coasts (open area) and in harbours (semi-open area) with contrasting levels of pollution. Biomarker assays were performed to compare the responses in several tissues (digestive glands, gonads, gills) to inorganic pollutants. The results showed that the accumulation of trace element was different depending on the site and the organ. Mts concentrations were greater in digestive gland compared with gills. U