A critical assay of heavy metal pollution index for the groundwaters of Peenya Industrial Area, Bangalore, India.

Heavy metals, due to their non-biodegradability and tendency to cause detrimental effects in human beings, are considered as the most hazardous and toxic pollutants. The present investigation was taken up to evaluate the heavy metal concentrations in the groundwaters of Peenya Industrial Area in Bangalore. The concentration of six eco-toxic metals such as chromium, copper, cadmium, iron, nickel, and lead were analyzed for 30 groundwater sampling stations in the study area using atomic absorption spectrometer. The concentration of heavy metals followed the order Cr> Fe >Pb>Cu> Ni> Cd. The analysis results have been used to compute two pollution indices in the groundwater, namely heavy metal pollution index and metal index. Heavy metal pollution index is an effective method of rating and ascertaining the water quality with respect to heavy metals. An index value of 100 is considered to be critical, and on the basis of mean concentration, this value in the study area was observed to be 146.32, which is considerably higher than the stipulated critical index value. 63.33% of the groundwater samples are seen to be having an index far above the critical figure of 100. The mean concentration of metal index was 10.36 and it was seen that 46.67% of the groundwater samples fell under the seriously affected category (metal index values above 6). The results not only show that groundwater of the present study is unacceptable for drinking but also clearly indicate the influence of urban, industrial, and agricultural activities on the groundwaters of the said area. This study has massive relevance in designing control measures and action plans for reducing the pollutant influx into the groundwaters. Prompt enforcement of environmental protection laws is needed to prevent continuous pollution of the area. Further, an immediate and sustainable collective action by all stakeholders to control the pollution level is highly recommended, as this issue poses a severe public health threat.

Sudden death due to massive hemoptysis secondary to pulmonary tuberculosis--a case report.

Forensic pathologists deal not only with criminal, accidental and suicidal deaths, but also with a wide range of deaths from natural causes. Natural deaths at times can be sudden, unexpected and unattended by the relatives or friends or eye witnesses. In such cases, even though there is no criminal element in their causation, the case has to be investigated and medico-legal autopsy has to be conducted to know the exact cause of death, thus putting an end to the allegations raised. A 55-year-old male was found dead lying in his room in a pool of blood without any obvious injuries under suspicious circumstances with disturbed furniture in his room. The case was investigated due to suspicious circumstances of his death and absence of history of significant medical illness. The autopsy revealed the death was due to asphyxiation as a result of massive hemoptysis secondary to fibro-cavitatory tuberculosis.

Hydrochemical assessment of the pollutants in groundwaters of Vrishabhavathi Valley Basin in Bangalore (India).

The present study aims at the assessment of groundwater quality in and around the Vrishabhavathi Valley, the erstwhile fresh water stream, today carrying huge quantities of industrial, agricultural and domestic effluents from the western part of Bangalore metropolis. Groundwater samples were collected from both bore wells and open wells along the Vrishabhavathi watershed and subjected to a comprehensive physico-chemical and bacteriological analysis. The study revealed that 57% of the samples were non-potable due to their values when compared to the BIS standards. The concentrations of nitrate and total hardness were found higher than the standards in 43.33% and 40% of the samples respectively. 50% of the samples examined, indicated bacterial contamination in the groundwater.

Impact of industrialization on groundwater quality--a case study of Peenya industrial area, Bangalore, India.

The present study aims at identifying the groundwater contamination problems in Bangalore city in India. Groundwater samples from 30 different locations of the industrial area were collected. Analytical techniques as described in the Standard methods for the examination of water and wastewater were adopted for physico-chemical analysis of these samples and the results compared with the Bureau of Indian Standards (BIS) guideline values for potable water in the light of possible health hazards. The investigations reveal that most of the study area is highly contaminated due to the excessive concentrations of one or more water quality parameters such as Nitrates, Total Hardness, Calcium, Magnesium, Total dissolved solids, Sulphates and Fluorides, which have rendered nearly 77% of the water samples tested, non- potable. Discussions held by the authors with the local public as well as the Primary health centre authorities of the area revealed that a lot of people in the area are suffering from severe health problems on using this water. The findings show that there is a clear correlation between the ill health faced by the public and contamination of the said groundwaters.

Black-white disparities in blunt trauma.

To uncover causes of increased mortality rates in black accident victims, patterns of injury and access to trauma care were compared between black and white patients. Over a 41-month period (February 1985 to June 1988), 2120 white and 468 black patients, each with an Injury Severity Score (ISS) > 14 as a result of blunt trauma, were admitted to a Level I regional trauma center, part of a statewide trauma system. Blacks were significantly older and more of them had premorbid illnesses. Although vehicular crashes accounted for the majority of injuries in both groups, blacks had significantly more injuries resulting from falls, pedestrian accidents, and assaults. Whereas 70.6% of whites were transported from the scene and 73% were transported by helicopter, 52.7% of blacks were transported from the scene and 44% by helicopter. Blacks made up 18% of the study group and accounted for 20% of deaths (mortality rate 17.3% for blacks and 14.9% for whites). Mortality was significantly increased for black patients admitted with a Glasgow Coma Scale (GCS) score > or = 13. Private medical insurance, available for 46.3% of black patients, accounted for 78% of payments for all trauma admissions. Increased mortality of black trauma patients may be related to risk factors (age, premorbid illness), increased rates of pedestrian accidents and falls, and disparities in access to Level I trauma centers.

Helmet use, patterns of injury, medical outcome, and costs among motorcycle drivers in Maryland.

A comprehensive study was conducted of all motorcycle traffic crashes occurring in Maryland during a one-year period. All available medical and cost data were linked with police crash reports. During the study period, 1,900 motorcycle drivers were involved in crashes. The data indicated that (i) helmet usage was 35% overall, 30% among fatally injured drivers, and only 16% among drivers with a history of drug/alcohol conviction, (ii) unhelmeted drivers seen at an emergency department were almost twice as likely to have sustained head injury (40%) as were helmeted drivers (21%) (the corresponding percentages for hospitalized drivers were 55% and 38%), and (iii) acute care cost for unhelmeted drivers was three times ($30,365) that of helmeted drivers.

Rupture of thoracic aorta caused by blunt trauma. A fifteen-year experience.

During the 15 years from 1971 through 1985, 114 patients with rupture of the thoracic aorta caused by blunt trauma were admitted to the Shock Trauma Center of the Maryland Institute for Emergency Medical Services Systems. Mean age was 31.3 years (range, 15 to 80). Ninety were male and 24 were female, a 3.75:1 ratio. Of the 114, 89 (78.1%) survived initial resuscitation in the admitting area. Twenty five of the 89 initial survivors (28.1%) died during or after surgical repair. Paraplegia occurred in 11 of the 78 operating room survivors (14.1%). Further analysis was done of the 83 patients admitted in the 10-year period from 1976 through 1985. Mean Injury Severity Score, excluding aortic injury, was 18.2. Twenty-five of the 83 (30.1%) died during resuscitation in the admitting area or operating room. Seven others died during surgical repair and 12 died postoperatively, leaving 39 survivors (39/83 [47%] of total admissions and 39/58 [67.2%] of survivors of resuscitation). Paraplegia/paresis developed postoperatively in six of 34 (17.6%) cases involving shunt and four of 17 (23.5%) without shunt. Other major complications occurred in 21 of the operating room survivors. Statistically significant risk of death or major complication was associated with female sex, higher Injury Severity Score, lower admission blood pressure, larger hemothorax on admission, less qualified surgeon, major operation before aortic repair, use of shunt, and transfer directly from scene of injury. There was no advantage in this series to using or not using a shunt in preventing paraplegia. Mortality rates are realistic for a highly developed trauma system. Better techniques are needed to manage exsanguination and prevent paraplegia.

Marijuana and alcohol use among 1023 trauma patients. A prospective study.

Marijuana use prior to injury was determined prospectively in 1023 patients injured as the result of vehicular (67.6%) and nonvehicular (32.4%) trauma. Most were men (72.8%); most were 30 years of age or younger (58.4%). All were admitted directly from the scene of injury. Serum delta-9-tetrahydrocannabinol activity was ascertained using a radioimmunoassay. Activity of 2 ng/mL or more was detected in 34.7% of subjects. Blood alcohol determinations were made in 1006 patients; 33.5% were positive. Marijuana use among vehicular and nonvehicular trauma victims was not significantly different. Marijuana use was higher among those 30 years of age or younger and among men. Vehicular crash victims consumed alcohol more frequently. Use of marijuana and alcohol in combination (16.5%) was highly significant compared with marijuana alone (18.3%), alcohol alone (16.1%), or neither drug (49.1%).

Patterns of care for hypertension among hospitalized patients.

In a sample of 19,210 adult inpatients discharged from Maryland community hospitals in 1978, 1 in 4 had either an elevated diastolic blood pressure greater than or equal to 100 mmm Hg (3,338) or a diagnosis of hypertension (1,233). Among the patients with elevated blood pressure, hypertension was disgnosed in 44 percent, and 48 percent received advice concerning followup care. Likewise, of the patients with diagnosed hypertension, 72 percent were treated in the hospital, and 70 percent received advice concerning followup care. Age, race, and sex differences were significant. White male were least likely to have hypertension diagnosed, to be treated for it, or to receive instruction about it. The survey results were used to the Maryland State Department of Health and Mental Hygiene to formulate a statewide high blood pressure coordination plan and to construct modules for the education of professional in high blood pressure treatment and control. A followup survey is planned to evaluate the effect of these efforts.