The study investigated the effects of polystyrene nanoparticles (MNPs) on the uptake of eight organic pollutants (OPEs) by rice seedlings. Results showed that OPEs accumulated in a concentration-dependent manner in both roots and shoots of rice seedlings. The impacts of MNPs were concentration- and size-dependent, influencing transpiration rate and antioxidant enzyme activities. Significant effects were found in exposure groups of medium-size and high-concentration MNPs. MNPs had more noticeable effects on OPE species with lower logKow in roots and more on species with higher logKow in shoots. A positive linear relationship was found between logTF and logKow, and a negative linear relationship between logRCF and logKow. The study highlights that the presence of MNPs could alter the characteristics of uptake, translocation, and accumulation of OPEs in rice seedlings, providing evidence for comprehensive control strategies for new pollutants.
The Ocean Plastics Charter aims to bring together leading countries, sub-national governments, businesses, and civil society organisations to commit to a more resource-efficient and sustainable approach to keep plastics in the economy and out of the environment. With this charter, it aims to transition to a more sustainable and resource-efficient method of managing plastics. Through[…]
These regulations are intended to promote sustainable development, food security, and the sustainable management of fishing activities in Palau’s waters. They also intend to create economic returns, employment generation, and export earnings from the sustainable harvesting of tuna and tuna-like species by encouraging the development of domestic fishing industries and a local tuna market. These[…]
This subchapter E of Title 40 of the Code of Federal Regulations outlines the pesticide programs, including registration and classification procedures, policies, special review procedures, standards, labelling requirements, packaging requirements, data requirements, and good laboratory practice standards. It also covers state registration of pesticide products, rules of practice governing hearings under the federal Insecticide, Fungicide,[…]
The Plastics Roadmap aims to decrease littering and other environmental harm brought on by plastics, prevent needless use, enhance plastic recycling, and replace traditional polymers derived from fossil fuels combined with various substances and liquids. To guarantee more focus on sustainable product development, reuse, product recyclability, and the growing usage of recovered plastics, these objectives[…]
The regulations aim to enhance aquaculture pollution prevention and control, protect aquatic ecosystems, ensure product quality and safety, and promote sustainable development. They consist of 24 articles divided into four sections: general provisions, delimitation of prohibited areas, pollution prevention and control, and environmental monitoring and supervision of fishery waters.