نتایج جستجو برای: carcinogenic pahs

تعداد نتایج: 15402  

2014
Quan-Ying Cai Pei-Yun Xiao Huixiong Lü Athanasios Katsoyiannis Jun-Jian Tian Qiao-Yun Zeng Ce-Hui Mo

In this study, an innovative and inexpensive approach, based on car engine air filters (CAFs), was used to monitor polycyclic aromatic hydrocarbons (PAHs) and heavy metals (HMs). CAFs were collected from two taxi garages in Guangzhou and analyzed for PAHs and heavy metals. The total concentrations of eight high molecular weight PAHs (ΣPAHs) ranged from 923 to 11378 μg/CAF. The average ΣPAHs con...

Journal: :Journal of King Saud University: Engineering Sciences 2022

An investigation into the exhaust emissions of carcinogenic polycyclic aromatic hydrocarbons (PAHs) from a diesel engine was reported. The study is reinforced by experimental results obtained tube reactor aimed at examining PAH formation processes these fuels. paper cantered on 16 priority PAHs suggested United States Environmental Protection Agency (US-EPA). These were produced burning convent...

Journal: :Applied sciences 2023

The chemical group comprising polycyclic aromatic hydrocarbons (PAHs) has received prolonged evaluation and scrutiny in the past several decades. PAHs are ubiquitous carcinogenic pollutants pose a significant threat to human health through their environmental prevalence distribution. Regardless of origin, natural or anthropogenic, generally stem from incomplete combustion organic materials. Die...

Journal: :Latin American Journal of Aquatic Research 2021

Mexico has a great variety of aquatic ecosystems; however, most them present significant contamination levels. Despite the efforts to monitor toxic and bioaccumulative persistent pollutants, they are still insufficient outdated data from Mexican coasts, especially in polychlorinated biphenyls (PCBs) polyaromatic hydrocarbons (PAHs), due number bodies that have received little or no attention. I...

Journal: :Physiological research 2006
L Borská Z Fiala J Krejsek K Hamáková C Andrýs J Smejkalová D Vokurková J Kremlácek

Goeckerman's therapy (GT), which combines exposure to coal tar (polycyclic aromatic hydrocarbons - PAHs) and UV radiation (UV) is often used as the first option for treatment of psoriasis. However, PAHs and UV represent mutagenic, carcinogenic and immunotoxic agents. Therefore GT can represent a health risk for the patients. The group under observation consisted of thirty patients undergoing GT...

2018
Iniobong A. Charles Atieme J. Ogbolosingha Inimfon U. Afia

The current study investigated the levels of some heavy metals [lead (Pb), arsenic (As), nickel (Ni), mercury (Hg), copper (Cu), cadmium (Cd), aluminum (Al), and chromium (Cr)] and polycyclic aromatic hydrocarbons (PAHs) in six brands of instant noodles (CFN, GFC, NGP, GAA, CUN, and FCS) commonly consumed in Port Harcourt, Nigeria. Risks of consumption of contaminated noodles were also assessed...

2015
Lilianne Abramsson-Zetterberg Bianca-Maria Maurer

Polycyclic aromatic hydrocarbons (PAHs) occur in complex mixtures present in the human environment. Because of the carcinogenic properties of some of these PAHs, they raise concerns regarding health and food safety. Because the occurrence of benzo[a]pyrene, chrysene, benz[a]anthracene, and benzo[b]fluoranthene (PAH4) are considered markers for other genotoxic PAHs in foodstuffs, the European Un...

Journal: :Biochemical pharmacology 2004
Lydie Sparfel Laurence Huc Marc Le Vee Mireille Desille Dominique Lagadic-Gossmann Olivier Fardel

We examined the effects of amiloride derivatives, especially 5-(N-ethyl-N-isopropyl)amiloride (EIPA), on the activity of cytochrome P450 (CYP) 1 isoforms, known to metabolize carcinogenic polycyclic aromatic hydrocarbons (PAHs), such as benzo(a)pyrene (BP), into mutagenic metabolites and whose cellular expression can be induced through interaction of PAHs with the arylhydrocarbon receptor. EIPA...

Journal: :Environmental Health Perspectives 2004
Cathryn C Tonne Robin M Whyatt David E Camann Frederica P Perera Patrick L Kinney

As part of a multiyear birth-cohort study examining the roles of pre- and postnatal environmental exposures on developmental deficits and asthma among children, we measured personal exposures to polycyclic aromatic hydrocarbons (PAHs) among 348 pregnant women in northern Manhattan and the South Bronx, New York. Nonsmoking African-American or Dominican women were identified and recruited into th...

Journal: :Environmental Health Perspectives 1994
M Chorazy J Szeliga M Strózyk B Cimander

The air monitoring system in Upper Silesia has provided abundant data on airborne pollutants. Air quality in this region is bad: a concentration of several gases, volatile compounds, metals, and complex mixtures of organic compounds carried by small particulate matter exceeds both daily and yearly admissible levels. About 250 individual polycyclic aromatic hydrocarbonds (PAHs) were identified i...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید

function paginate(evt) { url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term pg=parseInt(evt.target.text) var data={ "year":filter_year, "term":term, "pgn":pg } filtered_res=post_and_fetch(data,url) window.scrollTo(0,0); } function update_search_meta(search_meta) { meta_place=document.getElementById("search_meta_data") term=search_meta.term active_pgn=search_meta.pgn num_res=search_meta.num_res num_pages=search_meta.num_pages year=search_meta.year meta_place.dataset.term=term meta_place.dataset.page=active_pgn meta_place.dataset.num_res=num_res meta_place.dataset.num_pages=num_pages meta_place.dataset.year=year document.getElementById("num_result_place").innerHTML=num_res if (year !== "unfilter"){ document.getElementById("year_filter_label").style="display:inline;" document.getElementById("year_filter_place").innerHTML=year }else { document.getElementById("year_filter_label").style="display:none;" document.getElementById("year_filter_place").innerHTML="" } } function update_pagination() { search_meta_place=document.getElementById('search_meta_data') num_pages=search_meta_place.dataset.num_pages; active_pgn=parseInt(search_meta_place.dataset.page); document.getElementById("pgn-ul").innerHTML=""; pgn_html=""; for (i = 1; i <= num_pages; i++){ if (i===active_pgn){ actv="active" }else {actv=""} pgn_li="
  • " +i+ "
  • "; pgn_html+=pgn_li; } document.getElementById("pgn-ul").innerHTML=pgn_html var pgn_links = document.querySelectorAll('.mypgn'); pgn_links.forEach(function(pgn_link) { pgn_link.addEventListener('click', paginate) }) } function post_and_fetch(data,url) { showLoading() xhr = new XMLHttpRequest(); xhr.open('POST', url, true); xhr.setRequestHeader('Content-Type', 'application/json; charset=UTF-8'); xhr.onreadystatechange = function() { if (xhr.readyState === 4 && xhr.status === 200) { var resp = xhr.responseText; resp_json=JSON.parse(resp) resp_place = document.getElementById("search_result_div") resp_place.innerHTML = resp_json['results'] search_meta = resp_json['meta'] update_search_meta(search_meta) update_pagination() hideLoading() } }; xhr.send(JSON.stringify(data)); } function unfilter() { url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term var data={ "year":"unfilter", "term":term, "pgn":1 } filtered_res=post_and_fetch(data,url) } function deactivate_all_bars(){ var yrchart = document.querySelectorAll('.ct-bar'); yrchart.forEach(function(bar) { bar.dataset.active = false bar.style = "stroke:#71a3c5;" }) } year_chart.on("created", function() { var yrchart = document.querySelectorAll('.ct-bar'); yrchart.forEach(function(check) { check.addEventListener('click', checkIndex); }) }); function checkIndex(event) { var yrchart = document.querySelectorAll('.ct-bar'); var year_bar = event.target if (year_bar.dataset.active == "true") { unfilter_res = unfilter() year_bar.dataset.active = false year_bar.style = "stroke:#1d2b3699;" } else { deactivate_all_bars() year_bar.dataset.active = true year_bar.style = "stroke:#e56f6f;" filter_year = chart_data['labels'][Array.from(yrchart).indexOf(year_bar)] url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term var data={ "year":filter_year, "term":term, "pgn":1 } filtered_res=post_and_fetch(data,url) } } function showLoading() { document.getElementById("loading").style.display = "block"; setTimeout(hideLoading, 10000); // 10 seconds } function hideLoading() { document.getElementById("loading").style.display = "none"; } -->