Suicide in England and Wales, 1975–1984

1987 ◽  
Vol 150 (3) ◽  
pp. 309-314 ◽  
Author(s):  
G. M. G. McClure
Keyword(s):  
Suicide Rate ◽  
Exhaust Gas ◽  
Small Decrease ◽  
Vehicle Exhaust ◽  
England And Wales ◽  
Young Females

An investigation of the suicide rate in the decade 1975–1984 in England and Wales revealed an increase in rate for males of all ages, and a small decrease for young females. The increase for males has been greatest in the 25–54 years group. There has been a decrease in the number of suicides by poisoning with solids and liquids (including overdoses) for both sexes. Rates for poisoning by vehicle exhaust gas and by hanging, strangulation and suffocation have increased substantially during this period. In males, suicides by these methods now exceed those due to poisoning by solids and liquids.

Trends in Suicide Rate for England and Wales 1975–80

1984 ◽  
Vol 144 (2) ◽  
pp. 119-126 ◽  
Author(s):  
G. M. G. McClure
Keyword(s):  
Suicide Rate ◽  
Common Method ◽  
Exhaust Gas ◽  
Accidental Death ◽  
Vehicle Exhaust ◽  
England And Wales ◽  
Real Increase

SummaryThe suicide rate in England and Wales has increased annually in the period 1975 to 1980. The increase has occurred in both sexes, but has been greater for males. There has been a decrease in suicide by poisoning with solid or liquid substances (including overdoses) and a marked increase in poisoning by vehicle exhaust gas. The rate of hanging, strangulation and suffocation has also increased substantially: taken together (ICD E953) these now form the most common method of suicide in males. Statistics for ‘undetermined’ and ‘accidental’ death have been examined, and indicate that the increase in the official suicide rate represents a real increase in suicides during this period.

scholarly journals Suicide in children and adolescents in England and Wales 1970–1998

2001 ◽  
Vol 178 (5) ◽  
pp. 469-474 ◽  
Author(s):  
G. M. G. McClure
Keyword(s):  
Children And Adolescents ◽  
Suicide Rate ◽  
Psychosocial Stress ◽  
Major Change ◽  
Exhaust Gas ◽  
Accidental Death ◽  
Adult Males ◽  
Vehicle Exhaust ◽  
England And Wales ◽  
Suicide Rates

BackgroundSuicide rates for England and Wales have been decreasing recently, but rates for young adult males remain high.AimsTo review changes in suicide rates for children and adolescents in England and Wales between 1970 and 1998.MethodRates for suicide, ‘accidental’ death by causes similar to suicide and ‘undetermined’ death for 10–14- and 15–19-year-olds are calculated between 1970 and 1998 using suicide data and estimated mid-year populations obtained from the Office for National Statistics.ResultsThere has been a substantial increase in suicide rate between the 1970s and the 1990s for males aged 15–19 years. This remains true even when ‘undetermined’ and ‘accidental’ death rates for causes similar to suicide are examined. The increase was associated with an increase in self-poisoning with vehicle exhaust gas in the 1980s and an increase in hanging which has continued into the 1990s. Although there was a slight decrease in the official suicide rate for females aged 15–19 years, ‘undetermined’ deaths increased. There is no indication of a major change in suicide rate in 10–14-year-olds.ConclusionsThe substantial increase in suicide rate in 15–19-year-old males may indicate increased psychosocial stress, particularly affecting this group.

Suicide in Children and Adolescents in England and Wales 1960–1990

1994 ◽  
Vol 165 (4) ◽  
pp. 510-514 ◽  
Author(s):  
G. M. G. McClure
Keyword(s):  
Children And Adolescents ◽  
Suicide Rate ◽  
Psychosocial Stress ◽  
Exhaust Gas ◽  
Accidental Death ◽  
Vehicle Exhaust ◽  
Death Rates ◽  
Gender Group ◽  
England And Wales ◽  
Suicide Rates

BackgroundFollowing reports of recent increases in adult male suicides in England and Wales, suicide rates for children and adolescents are reviewed.MethodBy using estimated mid-year populations for five-year age bands, the suicide rates for 10–14 year-olds and 15–19 year-olds are calculated between 1960–1990. The same method is used to obtain rates for ‘undetermined’ death and ‘accidental’ death by causes comparable to suicide.ResultsThe only group to show an increase in suicide rate since the 1970s has been males aged 15–19 years. This increase persists even when ‘undetermined’ and ‘accidental’ death rates for causes similar to suicide are examined. The increase is associated with an increase in hanging and self-poisoning with vehicle exhaust gas.ConclusionsThe increase in suicide rate in 15–19 year-old males may indicate increased psychosocial stress, particularly affecting this age/gender group.

Trends in suicide in Northern Ireland 1922-1992

1996 ◽  
Vol 13 (1) ◽  
pp. 9-12 ◽  
Author(s):  
Paul H McCrea
Keyword(s):  
Health Care ◽  
Economic Development ◽  
Northern Ireland ◽  
Suicide Rate ◽  
Young Men ◽  
European Countries ◽  
Exhaust Gas ◽  
Vehicle Exhaust ◽  
Major Health ◽  
Registrar General

AbstractObjective: The trends in suicide in Northern Ireland over a 70 year period were examined with respect to sex, age and method used, and then compared with rates of unemployment and homicide.Method: The records in the office of the registrar general in Belfast were examined to obtain data. Unemployment figures were obtained from the Department of Economic Development.Results: Suicide is increasing in Northern Ireland and particularly in young men (aged 34 and under). There is a relation to unemployment although it is not felt to be directly causal. Men prefer more violent methods although vehicle exhaust gas is popular. A large number of women still choose drowning.Conclusions: Despite all initiatives, the suicide rate is increasing in Northern Ireland, in common with many European countries. It represents a major health care issue. Measures of a social or political nature may have more effect than health care advances in reducing the rate of suicide.

scholarly journals Changes in suicide in England and Wales, 1960–1997

2000 ◽  
Vol 176 (1) ◽  
pp. 64-67 ◽  
Author(s):  
G. M. G. McClure
Keyword(s):  
Motor Vehicle ◽  
Age Groups ◽  
Exhaust Gas ◽  
Vehicle Exhaust ◽  
England And Wales ◽  
National Statistics ◽  
Suicide Rates ◽  
Males And Females ◽  
The 1960S ◽  
Methods Of Suicide

BackgroundMethods of suicide and suicide rates in England and Wales have fluctuated considerably since the 1960s.AimsTo review the changes that have occurred in suicide rates in England and Wales between 1960 and 1997.MethodSuicide rates, derived from total annual suicides and the estimated annual resident population, were obtained from the Office for National Statistics.ResultsSuicide rates decreased in both genders between the early 1960s and the mid-1970s. The rate for males then increased between 1975 and 1990, while the rate for females continued to fall. Between 1990 and 1997, the rate decreased for males and females in all age groups, particularly for those using motor vehicle exhaust gas; the latter finding is associated with increasing use of catalytic converters.ConclusionsFollowing the increase in suicide among males until 1990 there was a decrease for both genders between 1990 and 1997, consistent with the ‘Health of the Nation’ target.

Methods of Youth Suicide in New Zealand: Trends and Implications for Prevention

2000 ◽  
Vol 34 (3) ◽  
pp. 413-419 ◽  
Author(s):  
Annette L. Beautrais
Keyword(s):  
New Zealand ◽  
Young People ◽  
Exhaust Gas ◽  
Youth Suicide ◽  
Vehicle Exhaust ◽  
Male Youth ◽  
Suggested Approach ◽  
Young Females ◽  
Suicide Rates ◽  
Methods Of Suicide

Objective: One commonly suggested approach to reducing suicide is to restrict access to potentially lethal means of suicide. This paper summarises recent trends in methods of suicide among young people in New Zealand and examines the feasibility of suicide prevention through restricting access to methods of suicide. Method: Data derived from official mortality statistics were used to examine trends, from 1977 to 1996, in methods of suicide among young people aged 15–24 years. Results: During the last two decades, male youth suicide rates in New Zealand doubled, from 20.3 per 100 000 in 1977 to 39.5 per 100 000 in 1996. This increase was accounted for, almost entirely, by increased use of hanging (71% of total increase) and vehicle exhaust gas (26% of total increase). Suicide rates among young females also increased, from 4 per 100 000 in 1977 to 14.3 per 100 000 in 1996. As for males, the increased female suicide rate was largely accounted for by increased rates of hanging and vehicle exhaust gas. Conclusions: The marked increases in rates of youth suicide in New Zealand during the past two decades are accounted for, almost wholly, by increases in rates of suicide by hanging and, to a lesser extent, vehicle exhaust gas. In 1996 the majority (79.7%) of youth suicides were accounted for by these two methods: hanging (61.5%) and vehicle exhaust gas (18.2%). Both methods are widely available and difficult to restrict, implying that limiting access to means of suicide is a strategy which is unlikely to play a major role in reducing suicidal behaviour among young people in New Zealand.

scholarly journals Effect of 11 September 2001 on suicide and homicide in England and Wales

2003 ◽  
Vol 183 (3) ◽  
pp. 207-212 ◽  
Author(s):  
Emad Salib
Keyword(s):  
Suicidal Ideation ◽  
Social Cohesion ◽  
Suicide Rate ◽  
England And Wales ◽  
Female Suicide ◽  
Inverse Effect ◽  
Group Integration ◽  
Before And After ◽  
External Threat ◽  
The Impact

BackgroundThe tragic events of 11 September 2001 and televised scenes of the terrorists' homicidal and suicidal acts could have had an impact on the behaviour of some people, who harbour suicidal ideation or homicidal tendencies.AimsTo assess the effect of 11 September 2001 on the rate of suicide and homicide in England and Wales.MethodAnalysis of the number of suicides (ICD–9 codes: E950–E959), undetermined injury deaths (E980–E989) and homicides (E960–E969) in England and Wales in the 12 weeks before and after 11 September 2001 and during a similar period in the previous two years.ResultsThe number of suicides reported in the month of September 2001 was significantly lower than other months in the same year and any September of the previous 22 years in England and Wales. A suicide reduction in men, regardless of age, occurred in the week starting Tuesday 11 September 2001. A reduction in female suicide occurred during the four weeks following the attack. There was no evidence of a similar effect on homicide.ConclusionsThe tragic events of 11 September 2001 appear to have had a brief but significant inverse effect on suicide. The finding of this study supports Durkheim's theory that periods of external threat create group integration within society and lower the suicide rate through the impact on social cohesion.

A Study of an Analysis Method for Trace Substances in Vehicle Exhaust Gas

2007 ◽  
Author(s):  
Yasunori Iwakiri ◽  
Hirotaka Kanno ◽  
Hiroyuki Koyama
Keyword(s):  
Exhaust Gas ◽  
Analysis Method ◽  
Vehicle Exhaust

Performance of Visible-Light-Driven Photocatalytic Pavement in Reduction of Motor Vehicles’ Exhaust Gas

2020 ◽  
Vol 2674 (11) ◽  
pp. 512-519
Author(s):  
Zhuoying Jiang ◽  
Xiong (Bill) Yu
Keyword(s):  
Absorption Spectrum ◽  
Visible Light ◽  
Motor Vehicle ◽  
Computational Simulation ◽  
Motor Vehicles ◽  
Traffic Density ◽  
Ultraviolet Region ◽  
Exhaust Gas ◽  
Vehicle Exhaust ◽  
Three Dimensional Model

Titanium dioxide (TiO2) is a widely used photocatalyst that can oxidize motor vehicle exhaust, for example, carbon monoxide (CO), nitrogen oxides (NOx), hydrocarbons, and sulfur dioxide, under the irradiation of sunlight. It has been reported that nano-scale TiO2 particles can be effectively used to modify the concrete-asphalt pavement, and make it as a photocatalytic pavement. However, the pure TiO2 additive limits its absorption spectrum to the ultraviolet region, which only occupies a small portion of sunlight irradiance. To increase the utilization of the full spectrum of sunlight, it has been demonstrated that doping TiO2 with substances such as Carbon (C), Nitrogen (N), or metal can reduce the band-gap and extend the threshold of the absorption spectrum to the visible light region. Therefore, doped-TiO2 has a better photocatalytic performance under sunlight irradiation. This paper conducted computational simulation of the kinetics of photocatalytic pavement to quantify the efficiency of doped-TiO2 embedded pavement in reducing exhaust gas from motor vehicles. A three-dimensional model is developed on a section of local road with doped-TiO2 embedded pavement. The effects of doped-TiO2 concentration, daylight conditions, and traffic flow conditions on the removal of NOx and CO were studied. The results indicate that the pavement with doped-TiO2 coating is effective to remove CO and NOx under different traffic density and daylight intensity conditions. Compared with UV activated TiO2, visible-light-activated doped-TiO2 features significantly higher removal efficiency of poisonous exhaustive gas including NOx and CO.

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