Abstract：
:To determine pulmonary deposition and clearance of inhaled volcanic ash, rats received a single 60-min, nose-only exposure to neutron-activated ash. Over a period of 128 days after exposure, the rats were sacrificed in groups of five animals. Lungs were analyzed for the radionuclide tracers 46Sc, 59Fe, and 60Co by gamma-ray spectrometry. The alveolar ash burdens, determined by the radionuclides 46Sc and 59Fe, are in good agreement for the majority of samples analyzed, indicating ash particulate levels in the lungs, rather than leached radionuclides. The ash deposition estimates based on 60Co were appreciably lower for the lungs, indicating that 60Co leached from the ash. Approximately 110 micrograms ash, or 6% of the inhaled ash, was initially retained in the deep lung. The biological half-time of the alveolar ash burden was 39 days. After 90 days, the mean lung burden had decreased to about 20% of its initial value; 128 days after exposure, about 10% remained.
journal_name
Environ Resjournal_title
Environmental researchauthors
Wehner AP,Wilerson CL,Stevens DLdoi
10.1016/0013-9351(84)90129-4subject
Has Abstractpub_date
1984-10-01 00:00:00pages
211-7issue
1eissn
0013-9351issn
1096-0953pii
0013-9351(84)90129-4journal_volume
35pub_type
杂志文章abstract：:Bioburden proliferation in filters from air conditioning systems of taxis represents a possible source of occupational exposure. The aim of this study was to determine the occurrence of fungi and bacteria in filters from the air conditioning system of taxis used for patient transportation and to assess the exposure of...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2018.03.032
更新日期：2018-07-01 00:00:00
abstract：:The effect of carbon and silicon nanotubes (CNTs and SiNTs) and carbon nanofibers (CNFs) to microscopic marine algae Heterosigma akashiwo was studied, using algal growth inhibition for 3 days (acute effect) and 7 days (chronic effect) as toxicity endpoints. The criterion of the toxic effect was the statistically signi...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2018.06.005
更新日期：2018-10-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2019.108857
更新日期：2020-01-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2020.109856
更新日期：2020-10-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/0013-9351(84)90020-3
更新日期：1984-02-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2017.05.028
更新日期：2017-08-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2014.12.029
更新日期：2015-05-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2019.05.038
更新日期：2019-09-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2019.108631
更新日期：2019-10-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2014.10.007
更新日期：2015-01-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2019.02.017
更新日期：2019-05-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章,评审
doi：10.1016/j.envres.2016.01.018
更新日期：2016-05-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2020.110666
更新日期：2020-12-24 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.envres.2017.08.002
更新日期：2017-11-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/0013-9351(83)90117-2
更新日期：1983-12-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/s0013-9351(87)80013-0
更新日期：1987-02-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2019.108903
更新日期：2020-02-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2011.03.002
更新日期：2011-10-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1006/enrs.1998.3870
更新日期：1998-11-01 00:00:00
abstract：:Five preparations of alpha-quartz [Min-U-Sil 5 (MQZ), MQZ pretreated with hydrofluoric acid (HFMQZ), Chinese standard alpha-quartz (CSQZ), and two German samples, DQ-12 and F600] and two preparations of the crystalline silica polymorphs, cristobalite and tridymite, previously characterized for surface area and surface...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1006/enrs.1995.1068
更新日期：1995-10-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2020.109221
更新日期：2020-04-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2020.109195
更新日期：2020-04-01 00:00:00
abstract：:Atmospheric pollution has emerged as a major public health issue in China. Public perception and acceptable risk levels of air pollution can prompt individual behavioral changes and play a major role in the public's response to health risks. Therefore, to explore these responses and evaluate what constitutes publicly ...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2017.05.012
更新日期：2017-08-01 00:00:00
abstract：:The aim of this study was to investigate the short-term effects of tertiary-treated municipal effluents on the freshwater mussel Elliptio complanata. Caged mussels were immersed during 2 weeks in a river located North of Montreal Island, upstream/downstream the outfall and in one reference site located at the beginnin...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2011.07.009
更新日期：2011-11-01 00:00:00
abstract：BACKGROUND:Fine particulate matter (PM2.5) is a complex mixture of fine particulates with large spatiotemporal heterogeneities in chemical compositions. While PM2.5 has been associated with gestational diabetes mellitus (GDM), little is known about the relationship between specific chemical components of PM2.5 and GDM....
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2020.110470
更新日期：2020-11-18 00:00:00
abstract：:VOCs emissions from motor vehicles have become a main source of air pollution in many cities. However, the characteristics of VOCs emissions have not been fully elucidated. Ten representative vehicles were selected in Wuhan, China, and the VOCs emitted by these vehicles under actual working conditions were collected a...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2020.109802
更新日期：2020-09-01 00:00:00
abstract：:Chlorine is a reactive gas used by humanity for over two centuries. Exposure to chlorine has occurred in a number of situations, including as a chemical warfare agent, in industrial and domestic exposures, and as a result of accidents and spills. The toxicology of chlorine is related almost entirely to effects in the ...
journal_title：Environmental research
pub_type： 杂志文章,评审
doi：10.1006/enrs.2000.4110
更新日期：2001-02-01 00:00:00
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journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2020.109310
更新日期：2020-05-01 00:00:00
abstract：:Introduction There is evidence of improvement on mental health and well-being due to contact with green spaces, through various mechanisms and with potentially differential impacts in different populations. Many of these studies have been conducted among adults, while children have not been sufficiently investigated. ...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2020.110358
更新日期：2020-10-24 00:00:00
abstract：:The non-essential metal mercury (Hg) can have deleterious effects on health of organisms, and tends to bioaccumulate with age in long-lived organisms and to biomagnify along food webs. Because elasmobranchs are fished for human consumption and their Hg levels are frequently above the maximum Hg concentration recommend...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2018.11.024
更新日期：2019-02-01 00:00:00
