Polycyclic Aromatic Hydrocarbons as Priority Pollutants

Many countries pay increasing attention to problems of environmental safety and control of pollutants emission. Thereat the problem of presence of polycyclic aromatic hydrocarbons (PAHs) in environment becomes urgent because this substances are ubiquitous pollutants and some of them have carcinogenic properties. PAHs and their derivatives appears in the processes of incomplete combustion of organic substances. PAHs concentrations vary considerably in urban and rural places under influence of vehicular traffic, heat power plant and industrial activity. Some countries set non-mandatory ambient air quality standards for the PAHs. This fact shows pollutants of this class is to be given significant attention. This paper presents some up-to-date data related with sources of atmospheric PAHs, methods of their determination and processes affecting their concentration

Polycyclic Aromatic Hydrocarbons as Priority Pollutants

Many countries pay increasing attention to problems of environmental safety and control of pollutants emission. Thereat the problem of presence of polycyclic aromatic hydrocarbons (PAHs) in environment becomes urgent because this substances are ubiquitous pollutants and some of them have carcinogenic properties. PAHs and their derivatives appears in the processes of incomplete combustion of organic substances. PAHs concentrations vary considerably in urban and rural places under influence of vehicular traffic, heat power plant and industrial activity. Some countries set non-mandatory ambient air quality standards for the PAHs. This fact shows pollutants of this class is to be given significant attention. This paper presents some up-to-date data related with sources of atmospheric PAHs, methods of their determination and processes affecting their concentration

Профилирование примесей в образцах синтетических каннабиноидов, изъятых из незаконного оборота в Сибирском регионе Российской Федерации

This article discusses the analysis of a database, i. e. chromatogram and mass spectra that were received from subdivisions of Criminal Expertise Centre of Directorate for Law Enforcement in Transport Means of Russian Ministry of Internal Affairs for Siberian Federal District and former Main Directorate of Federal Narcotics Control Service of the Russian Federation for Krasnoyarsk Territory within 2012–2016 when studying synthetic cannabinoids samples confiscated from illegal trafficking. Typical profile impurities of synthesis reagents were identified, as well as of substances that are fillers for the most wide-spread classes of synthetic cannabinoidsПроведен анализ массива данных – архива хроматограмм и масс-спектров, полученных в подразделениях Экспертно-криминалистического центра Управления на транспорте МВД России по Сибирскому федеральному округу и бывшего Главного управления Федеральной службы Российской Федерации по контролю за оборотом наркотиков по Красноярскому краю в период с 2012 по 2016 гг., при исследовании изъятых из незаконного оборота образцов синтетических каннабиноидов. Идентифицированы типичные профильные примеси реагентов синтеза, а также веществ – наполнителей для наиболее распространенных классов синтетических каннабиноидо