Portal de Alcantarilla
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The general director of Quality and Environmental Assessment notes that this year will make local pollution study
The general director of Quality and Environmental Assessment, Encarna Molina, participated today in the Committee on Air Quality City Sewer, where recent indicators on air quality in the municipality were analyzed and where exposed the action developed by the Ministry of Water, Agriculture and environment since 2013 in relation to odor episodes recorded in Alcantarilla and its surroundings.
Molina said that in addition to the measures being launched under the Plan to Improve Air Quality approved and published in the BORM last February, "this year will be held again the local study of pollution" and he recalled that "we are working on the constitution, at the end of the year, the regional Commission for monitoring air quality", which encouraged to participate administrations, organizations, associations, social partners, political groups and citizens.
About Sewer, he explained that a study back trajectory, based on a model prediction and diagnosis of air quality with advanced techniques 'Sinqlair' program, to 2,146 incidents (2,006 complaints and 140 messages in 112) was conducted in 2015, in 255 different locations for 165 days.
The result of the study was similar to last year and concludes that there are episodes that can come from landfill Cañada Hermosa Alcantarilla chemical pole, the Industrial West, and there are not attributable to any of these sources reported.
The study to be conducted in 2016 provides for the introduction into the mathematical model for calculating back trajectories of orographic variable with a resolution of 30 meters, compared kilometer resolution has the model so that allow greater adjustment results back trajectory calculation and provide a more complete and effective model.
He also recalled that in late 2014 was located in the area of ​​chemical pole Sewer hyperspectral camera based on techniques of terrestrial remote sensing which confirmed the presence of substances such as toluene, methanol, N-dimethylformamide and acetone compounds using companies area.
environmental authorizations
These studies allow to have technical support to impose measures on environmental authorizations industries.
Molina recalled the preventive control is performed through environmental authorizations, since the establishment of the techniques available in industries and setting deadlines for implementation can suspend activities that do not or do not adapt.
In this regard, he stressed that "environmental authorizations industries chemical pole of Sewell have been the first to collect the requirement that the company implant measurement networks for those specific contaminants that are not measured by the stations of the monitoring network regional ", which measure the contaminants established by Royal Decree 102/2011 of improving air quality.
The specific pollutants whose measurement is required for each industry are those that were detected by the hyperspectral camera.
He also recalled that next September Derivatives Chemicals company must have installed the new RTO to operate at 1100 ° C for two seconds, following the instructions of the Directorate General of Public Health.
Likewise, the Directorate General of Quality and Environmental Assessment has carried out inspections at the companies in the area that may cause episodes of odors, has dealt with the application data traffic for the values ​​produced by volatile organic compounds of road traffic and has requested information from the companies that use commodities in case they might cause episodes of bad odors.
Molina Encarna recalled that counseling is analyzing the measurements carried out at stations network monitoring air quality.
In late June high peaks were detected in the station Raceway benzene and toluene and 28 June an extraordinary inspection was conducted to verify Derivatives Chemicals abnormal situations that may be occurring and that influenced the data recorded by the station.
The inspectors checked all production processes carried out by the company since 3 in the morning and found that conditions were normal.
After the inspection Derivatives Chemicals, research continues in collaboration with the City Sewer and Local Police on other possible sources of peaks that are still occurring but to date it has found cause and effect.
Molina stressed that continue to receive data from emissions RTO and all purification equipment installed by Derivatives Chemicals, gases that detect any abnormality associated with the industry and these continuous measurements will also be payable for all implemented activities in the complex.
The director general said the report prepared in January 2015 by the Directorate General in relation to levels of benzene, toluene and xylene recorded in the station Sewer from 2008 to 2014, which concludes that "is not exceeded during this period the values ​​required by regulation or recommended by the World Health Organization. "
With regard to toluene because it is a pollutant that is not set in the legislation a limit value, the recommendations of the World Health Organization (WHO) apply.
These are that airborne concentrations should be kept below the threshold odor detection and other weekly guideline values, this value being weekly guide to 260 micrograms / cubic meter.
However, this Directorate General has been established for years, internally, the value of 50 micrograms / cubic meter, as the value from which starts a protocol for requesting information to companies they are in the field, to analyze the possible causes of the increase in values ​​recorded by the network.
Finally, the head of the Directorate General of Quality and Environmental Assessment explained that last Friday there was a technical problem in one of the analyzers station network monitoring air quality located in Sewell that led to the invalidation of the measured data the previous day.
The fault was solved shortly.
Similarly, he said that on that day a computer migration scheduled on the website of the Community, so have not been able to publish for a few days the data in real time on the website of Air Quality began.
This circumstance was notified on the web.
Computer incidence is determined and the data available.
Source: CARM
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