Hydrocarbon Concentration In Aquatic Plants
- صفحه اصلی
- Hydrocarbon Concentration In Aquatic Plants
The experimental conditions (toxicant concentration, plant detrimental toxicant concentration, exposition time, growth media, plant endpoint analyzed, test plant species) that are generally adopted in freshwater phytotoxicity tests are reported here. ... As for negative effects of hydrocarbons on aquatic plants, the available studies ...
به خواندن ادامه دهید
from hydrocarbons is in the raw water going into a water treatment plant or into filtered water after leaving the water treatment plant; Proximity to public services (i.e. food premises, hotels, educational facilities, leisure centres, and hair salons); Proximity to healthcare services (i.e. hospitals, long-term care facilities,
به خواندن ادامه دهید
The topics covered include common treatment methods for hydrocarbon wastes, definitions and mechanisms of phytoremediation, interactions between plants …
به خواندن ادامه دهید
Using synthetic microbial systems for bioremediation provides sustainable and cost-effective methods for cleaning soils, bodies of water, and oceans contaminated …
به خواندن ادامه دهید
Nitrogen and phosphorus are low in aquatic ecosystems and wetlands cannot provide nutrients due to the high demands on plant nutrients. The introduction of nutrients is, therefore, necessary to facilitate the biodegradation of pollutants. Similarly, nitrogen sources should be considered . For certain situations, nitrogen, phosphorus and …
به خواندن ادامه دهید
Therefore, this investigation examines the levels, distribution, sources, and dangers of 13 US EPA PAHs and n -alkanes (oscillating from nonane, n -C9, to icosane, …
به خواندن ادامه دهید
Product Description. The ability to analytically quantify total hydrocarbons and volatile organic compounds (VOCs) in cooling towers, heat exchangers, holding ponds, produced water, run-off water, and waste water is greatly enhanced with the Model 204 Hydrocarbon VOC in water analyzer due to the Sample Transfer Stripper, utilizing …
به خواندن ادامه دهید
Polycyclic aromatic hydrocarbons (PAHs) are major organic pollutants in the environment, which are toxic to humans and biota, given their carcinogenic, mutagenic and teratogenic nature. In this …
به خواندن ادامه دهید
The qualitative and quantitative analysis of 16 polycyclic aromatic hydrocarbons (PAHs) in sludge samples from drinking water treatment plants (DWTP) and wastewater treatment plants (WWTP) were established using gas chromatography–mass spectrometry (GC-MS). The method was suitable to quantify …
به خواندن ادامه دهید
2. Type of Pesticide Pollutants in Water. Pesticides are categorized into several distinct groups based upon their target species, such as insecticide, herbicides and fungicides being the most used in agricultural farmland and urban settings [].Table 1 reviewed the classes and chemical compounds of insecticide, herbicide and fungicide. …
به خواندن ادامه دهید
Diesel hydrocarbons quantification in plant tissues was strongly correlated (0.92 < r2 < 0.99) to the concentration of diesel in spiked soils, suggesting a general ability of the considered plant species to adsorb and translocate relatively low amounts of diesel hydrocarbons and the reliability of the developed protocol.
به خواندن ادامه دهید
The results demonstrated unequivocally that the uptake of PAHs by a plant depended on polyaromatic hydrocarbon concentration in the sewage sludge. The correlation between accumulation coefficient of PAH in a plant and the content of the same PAH in the sewage sludge had for three-, four- and five-ring hydrocarbons an …
به خواندن ادامه دهید
The atmosphere greatly helps the movement of volatile organic compounds (VOCs ; saturation concentration, C∗ >10 6 μg m −3), semi-VOCs (C∗ = 10 1 –10 3 μg m −3), and intermediate VOCs (C∗ = 10 3 –10 6 μg m −3) through the global environment.TPHs and their derivatives are widespread harmful VOCs and semi-VOCs …
به خواندن ادامه دهید
Samples were rinsed with distilled water to wash off the remaining attached soil, and under aseptic conditions ... Whyte LG and Greer CW (2016) The Willow Microbiome Is Influenced by Soil Petroleum-Hydrocarbon Concentration with Plant Compartment-Specific Effects. Front. Microbiol. 7:1363. doi: 10.3389/fmicb.2016.01363. …
به خواندن ادامه دهید
More recent studies indicate that the bioaccumulation of PAHs in fish is directly correlated with the PAH concentration in aquatic plants, reflecting that PAHs in …
به خواندن ادامه دهید
Petroleum hydrocarbon waste is a common contamination in several environmental mediums, including soil, water, and air. Petroleum hydrocarbons are often seen in many locations, including refineries, where they serve as feedstocks for processes such as plastic manufacturing, as well as at facilities involved in the production of petrol …
به خواندن ادامه دهید
The MS1200 is an on-line oil in water analyzer which provides low level measurements (1-3000 ppb) of hydrocarbons, oils, BTEX and VOCs in water. ... increases until equilibrium is reached with the concentration in the water (Fig. 1) ... manager of a drinking water plant, you want your oil in water analyzer to give you a low level alarm at ...
به خواندن ادامه دهید
concentration of contaminants, water content, soil chemical properties and plant resistance to phototoxic effects [33], and prevailing ec ological and climatic conditions.
به خواندن ادامه دهید
Additionally, the concentrations of these hydrocarbons in water and sediment will keep rising with continued oil production and motor vehicle emissions. ... The unusually high PAH concentration in soil impacts the plants' production process. Three categories of soil PAH pollution have been reported based on the PAH concentration in …
به خواندن ادامه دهید
UPDATE 2:15 p.m.: Officials say hydrocarbons have been found in the water in eastern Orange County. According to a release, testing conducted on Aug. 21 confirmed the presence of hydrocarbons, an organic compound found in crude oil, …
به خواندن ادامه دهید
1. Introduction. Polycyclic aromatic hydrocarbons (PAHs) comprise over 200 organic compounds containing two or more fused aromatic rings [].According to the number of aromatic rings, they can be classified as light (2–3 rings) or heavy (4–6 rings) compounds [].Environmental PAHs can originate from natural sources, such as forest fires and …
به خواندن ادامه دهید
As for negative effects of hydrocarbons on aquatic plants, the available studies (Supplementary Table 3) show that hydrocarbons or their degradation products …
به خواندن ادامه دهید
Statistical analyses revealed that time plays a key role in hydrocarbon concentration levels in soil. The results suggested that grasses' (Fes and Dac) and legumes' (Lot and Med) growth increases the removal of TPH from polluted soils. ... 2019), resulting in increased available water content for plants. In addition, the co-activity of ...
به خواندن ادامه دهید
Organic pollutant contamination in the environment is a serious and dangerous issue, especially for developing countries. Among all organic pollutants, polycyclic aromatic hydrocarbons (PAHs) are the more frequently discovered ones in the environment. PAH contamination is caused chiefly by anthropogenic sources, such as …
به خواندن ادامه دهید
Coal and coal gangue are petrogenic sources of polycyclic aromatic hydrocarbons (PAHs), which cause adverse impacts on the environment. Raw coal, cleaned coal, slime, slack gangue, and lump gangue from the Pingshuo No. 1 Coal Preparation Plant, China, were analyzed to determine the concentrations and …
به خواندن ادامه دهید
In drinking water, Pconcentration varies between 1 ng/L and 11 µ g/L, and the highest acceptance by WHO for benzo(a)pyrene is 0.7 µ g/L ( Skupinska et al., 2004 ).
به خواندن ادامه دهید
1. Introduction. Polycyclic aromatic hydrocarbons (PAHs), a chemical group that has two or more condensed aromatic rings, are ubiquitous compounds in air, water, and soil [1,2,3,4,5], and are categorized as general environmentally harmful pollutants.PAHs are especially widely detected in the aquatic environment, including …
به خواندن ادامه دهید
The concentration of oxygen has been identified as a rate-limiting factor (Kumar et al., 2019). For example, soil usually requires 2 × 10 6 m 3 of water saturated with 10 mg/L O 2 for the effective oxidation of 10 m 3 of hydrocarbons to carbon dioxide and water (Koshlaf and Ball, 2017). Therefore, dissolved oxygen in soil is crucial for the ...
به خواندن ادامه دهید
Freshwater plant organisms used in ecotoxicology. The main output emerging after the systematic analysis of the ECOTOX database regarding over 6000 aquatic species used in water ecotoxicology (including animals, plants, and fungi), is that only 25% are plant species, and most of these are microalgae (60%), followed by …
به خواندن ادامه دهید
The contamination of water with hydrocarbons resulting from oil exploration and production highlights the need for efficient and environmentally friendly technology …
به خواندن ادامه دهید
In drinking water, PAH concentration varies between 1 ng/L and 11 μg/L, ... He and Chi (2019) investigated phytoremediation capabilities of two submerged aquatic plants, ... Polycyclic aromatic hydrocarbons (PAHs) concentration levels, pattern, source identification and soil toxicity assessment in urban traffic soil of Dhanbad. ...
به خواندن ادامه دهید
These microorganisms have major roles in the degradation of organic compounds, and their efficiency in degrading hydrocarbons increases in the presence of plants. 24,25,26,27,28 Once the pollutant ...
به خواندن ادامه دهید
چه بخواهید با ما کار کنید و چه علاقه مند به کسب اطلاعات بیشتر در مورد محصولات ما هستید، مایلیم از شما بشنویم.