Heatwave, water deficit and death due to heat stroke, 2017

 Heatwave, water deficit and death due to heat stroke, 2017.

 The water deficit and the scarcity of water in the body occur at different times of the year, depending on the characteristics of the climatic year and that of the individual, being generally more frequent during summer and spring. Frequently the heat stroke death is manifested by the combined action of the water deficit in the body and the high climatic demand caused by the heat wave and the joint action of the different climate factors acting on the individual. The study was conducted in Alicante, Spain and the results of spring and summer 2017 are analyzed. The body’s water deficit was evaluated for values ​​of 1.9 to 2.3 ml / min for urine flow. Mortal victims and patients admitted by heat wave increase with increasing temperatures as a result of global warming. Juan G. R., Juan P. J. A. Heatwave, water deficit and death due to heat stroke, 2017.  Water and Irrigation Vol.: 11, No. 1: 1-4, February 25, 2020, Spain.

From the investigations on the flow of urine and its relationship with the climatic factors that were carried out in Alicante during 3 years, 2017-2019 for the different times of the year, which consider winter, spring, summer and autumn, the study of water deficit of the body for values ​​of 1.9 to 2.3 ml / min for the flow of urine and for a normal flow of urine with values ​​greater than 2.9 ml / min, during Phase No. 1 of the investigations, which are included among the period of time between 1.0 am and 10.0 am was evaluated.

The climatic factors were taken from AEMET data sources at the Altet Climate station located about 10 km away from where the investigations were conducted, daily evaluating the behavior of the urine and the influential climatic factors: temperature, barometric pressure, relative humidity and wind speed.

Research indicates that in adults the water deficit and water scarcity in the body, reflect that at that time there is no adequate water supply, so to counteract the adverse effects of heat waves,during the summer and spring, it should be taken normally about 2 liters of liquid per day, plus an additional contribution of 700 ml / day for water contained in the ingested food: fruits, vegetables, different meats and fish, cereals, grains and other foods. Additionally, more water must be supplied when the waves of intense heat appear, providing an additional 150 to 200 ml each time the heat waves appear.

The results obtained are in accordance with those reported by the Carlos III Health Institute for the period 2000-2009, which indicate that it is necessary to increase attention to certain population groups, such as the old people, children and some chronically ill as a consequence of the effects of heat waves, these already cause risk situations for those who work in the sun during the central hours of the day and can also affect young people.

The population’s exposure to heat is increasing due to climate change, and this trend will continue. Globally, it is observed that the phenomena of extreme temperatures are increasing in terms of frequency, duration and magnitude. Between 2000 and 2016, the number of people exposed to heat waves increased by approximately 125 million. Exposure to excessive heat has powerful physiological impacts on all humans, and often amplifies existing conditions and results in premature death and disability, according to WHO.

The water deficit and the scarcity of water in the body are manifested at different times of the year depending on the characteristics of the climatic year and the physiology of the individual, being generally more frequent during summer and spring. In the spring of 2017, the water deficit accompanied by high temperatures at the end of June, favored the first deaths due to heat wave and the health care of cases of patients due to heat stroke, Table No. 1. In the summer of 2017, the death toll and the attention of cases due to heat stroke increased, Table No. 2. In each period 90 evaluations were carried out, but in Tables 1 and 2 only the days in which there was a water deficit and some days with normal urine flow values, which are the most common observations are exposed, the results of the years 2018 and 2019 will be reported, which reflect a greater number of victims as a result of global warming.

Frequently the heat stroke death is manifested by the combined action of the water deficit in the body and the high climatic demand caused by the heat wave and the joint action of the different climate factors acting on the individual, as observed in the applied studies.

Table No. 1. The water deficit and high temperatures favored the first fatalities due to heat waves in June 2017

Specif. Time Urine  T Intens. Observations
June

Day- M

PM

Phase1

ml. Min. ml/m
2017          
13-6 1.0-3.4

3.4.-6.1

6.1-8.5

380

350

280

160

150

160

2.4

2.3

1.8

Water Deficit.

Stable weather conditions. Alicante T Max. 30.7 º C, 2 PM.

14-6 1.0-3.3

3.3-5.5

5.5-8.1

350

320

400

150

140

140

2.3

2.3

2.9

 Water Deficit, in the initial and middle stage of the urine cycle in Phase No. 1. Stable weather conditions. T Max. 30.2 º C, 1 PM
15-6 1.0-3.3

3.3-5.3

5.3-8.1

350

320

430

150

120

160

2.3

2.7

2.7

Normal weather conditions. Water is scarce in the body. T Max. 29.7 º in Alicante and from 40 º to 4 2 º C in some regions of Andalusia.
16-6 1.0-3.3

3.3-5.4

5.4-8.1

 

300

300

400

 

150

130

150

2.0

2.3

2.7

 

Water Deficit Effect and Thermal Stress Effect. T Max. 31.8 º C, 4 PM and T min. 21.6 º C 7 AM in Alicante and T Max. 42 º C by the heat wave in some regions of Spain.
17-6 1.0-3.5

3.5-6.4

6.4-8.0

 

350

500

400

 

170

140

110

2.1

3.6

3.6

 

Moderate low PB in descent and Thermal Stress Effect. T Max. 31.8 º C, 3 PM and T min. 21.6 º C 6 AM in Alicante. T Max. 42 º C in some regions of Andalusia
18-6 1.0-4.0

4.0-5.4

5.4-8.2

 

360

200

350

 

180

100

160

2.0

2.0

2.2

 

Water Deficit Effect and Thermal Stress Effect. T Max. 33.4 º C, 1 PM and T min. 21.8º C 7 AM in Alicante. T Max. 41 º C by the heat wave in some regions of Spain.
23-6 1.0-4.0

4.0-5.5

5.5-7.2

7.2-9.1

500

330

340

400

180

110

  90

110

2.8

3.0

3.8

3.6

 Moderate low PB effect influences urine in Phase No. 1. Wind gusts of 5 to 28 km / h

 

24-6 1.0-4.0

4.0-7.0

7.0-8.4

320

450

270

180

180

100

1.8

2.5

2.7

 Water Deficit. T min. 21.1 º C, at 6.0 AM. T max. 30.8 º C 3.0 PM in Alicante. There are other areas of the country with T max. of 40 ºC
25-6 1.0-4.2

4.2-6.1

6.1-7.5

7.5-9.2

320

350

300

240

200

110

100

  90

1.6

3.2

3.0

2.1

Water Deficit in the initial and final stage of urine Phase 1. In Alicante T max. 32 º C 3.0 PM and min. T 22 º C. In June 15, the first cases of heat stroke were recorded in C. Valenciana.
26-6 1.0-4.2

4.2-6.2

6.2-8.3

 

400

300

320

 

200

120

130

 

2.0

2.5

2.5

 

Water Deficit. Due to a heat wave, 1 dies in Seville, 1 in Estepona and another in Badajoz. June, the hottest month since 1965. T max. 33 C Alicante. Heat wave Spain> 42C

Table No. 2. Water deficit in the urine in the summer of 2017 and killed by heat wave effect.

Specif. Time Urine  T Intens. Observations
June

Day- M

PM

Phase1

ml. Min. ml/m  
2017          
24-6- 1.0-4.0

4.0-7.0

7.0-8.4

320

450

270

180

180

100

1.8

2.5

2.7

Water Deficit. T min. 21.1 º C, at 6.0 AM. T max. 30.8 º C 3.0 PM in Alicante. There are other areas of the country with T max. of 40º  C
26-6 1.0-4.2

4.2-6.2

6.2-8.3

 

 

400

300

320

 

200

120

130

2.0

2.5

2.5

 

 

Water Deficit. Due to a heat wave, 1 dies in Seville, 1 in Estepona and another Badajoz. June the hottest since 1965. The T is high the PB is low and the HR is low. Alicante T maximum 33 º C. Heat wave Spain> 42 º C
14-7- 1.0-3.3

3.3-5.0

5.0-8.0

 

420

250

450

 

150

  90

180

2.6

2.8

2.5

 

Stable weather conditions. There are water shortages in the body. Until July 14, 7 people have been reported dead by 41 ° C heat wave. Alicante T max. 30 º C and T min. 25C
19-7 1.0-3.4

3.4-6.1

6.1-8.4

390

500

520

160

150

150

2.4

3.3

3.5

Low PB effect supported by moderate low HR influence urine in Phase 1. Wind gusts of 11 to 37 km / h. T max 31 º C
29-7- 1.0-3.4

3.4-5.5

5.5-8.1

8.1-9.2

340

450

530

240

160

130

140

  70

2.1

3.5

3.8

3.4

Joint action by moderate low PB supported by moderate low HR influence in urine Phase1. T max. 32 º C 3.0 PM, T minimum 22 º C in Alicante.
        Between June 15 and August 31, the health services of the   C. Valenciana have treated twelve cases due to heat stroke.
        In the province of Alicante, a 52-year-old man died while unloading a truck, another 58 who worked in the field, one 85-year-old with hyperthermia and one 82-year-old woman. In the province of Castellon, one 47 year-old man died while working in the field. According Health Institutions of the C. Valenciana
26-8- 1.0-3.4

3.4-5.2

5.2-7.2

7.2-8.4

340

380

300

260

 160

 100

 120

  80  

2.1

3.8

2.5

3.3

Suspend new water supply 200 ml 2/8. Normal weather conditions. Alicante T maximum 29.5 º C and T minimum 24 º C. Wind Gusts: 8 to 33 km / h.

In 2015, 23 deaths occurred, of which 18 were in the longest recorded heat wave, of 26 days, between June 27 and July 22. The worst data were those of 2004, when the data began to be recorded and there were 26 cases of heat stroke

 

 

0 0 vote
Article Rating
Subscribe
Notify of
guest
0 Comments
Inline Feedbacks
View all comments