क्या वातावरण में मौजूद अदृश्य रेडियो तरंगें मनुष्यों के लिए हानिकारक हैं?पहले यह समझने की कोशिश करते हैं कि रेडियो तरंगे क्या होती हैं और कैसे बनती हैं। RADIO WAVES FREQUENCY
रेडियो तरंगें विद्युत चुम्बकीय विकिरण का एक प्रकार है, जैसे माइक्रोवेव, इन्फ्रारेड विकिरण, एक्स-रे और गामा-किरणें हैं। रेडियो तरंगों का सबसे प्रसिद्ध उपयोग संचार के लिए है;
टेलीविजन, सेलफोन और रेडियो सभी को रेडियो तरंगें मिलती हैं और उन्हें ध्वनि तरंगों को बनाने के लिए स्पीकर में यांत्रिक कंपन में परिवर्तित किया जाता है।
एक रेडियो ट्यूनर (radio tuner) रेडियो तरंगों को प्राप्त करता है और उन्हें ध्वनि तरंगों को बनाने के लिए स्पीकर में यांत्रिक कंपन में परिवर्तित करता है जिसे सुना जा सकता है।
विद्युत तरंग विद्युत चुम्बकीय स्पेक्ट्रम में सबसे कम आवृत्तियों हैं, और मुख्य रूप से संचार के लिए उपयोग किया जाता है।
रेडियो तरंगों को विभाजित किया गया है:
लंबी लहर: – तरंग दैर्ध्य में लगभग 1 ~ 2 किमी।
मध्यम लहर ( medium wave):- तरंग दैर्ध्य में लगभग 100 मीटर, बीबीसी रेडियो 5 और अन्य “एएम” स्टेशनों द्वारा उपयोग किया जाता है।
वीएचएफ (VHF):- यह “बहुत उच्च आवृत्ति” के लिए खड़ा है और लगभग 2 मीटर की तरंगदैर्ध्य है।यह वह जगह है जहां आपको स्टीरियो “एफएम” रेडियो स्टेशन मिलते हैं,
जैसे कि बीबीसी रेडियो 1 और आगे के वीएचएफ बैंड नागरिक विमान और टैक्सी हैं। RADIO WAVES FREQUENCY
यूएचएफ (UHF):- यह “अल्ट्रा हाई फ्रीक्वेंसी” के लिए है, और इसमें मीटर से भी कम तरंगदैर्ध्य है। इसका उपयोग पुलिस रेडियो संचार, टेलीविजन प्रसारण और सैन्य विमान रेडियो के लिए किया जाता है – हालांकि सैन्य संचार अब ज्यादातर डिजिटल और एन्क्रिप्टेड हैं।
तरंग दैर्ध्य के आधार पर, रेडियो तरंगें विभिन्न प्रकार के ट्रांसमीटर द्वारा बनाई जाती हैं। यह सितारों, स्पार्क्स और बिजली से भी बनती हैं। यही कारण है कि आप अपने रेडियो पर तूफान में हस्तक्षेप सुनते हैं।
मूल रूप से, उच्च वोल्टेज पावर लाइनों और फ्लोरोसेंट लाइट बल्बों को लेकर काफ़ी विवाद हुआ।
BIG BANG THEORY बिग बैंग थ्योरी क्या है
जब अमेरिका भर में घरों में माइक्रोवेव ओवन आया तो यह मुद्दा फिर से राख से एक दर्शक की तरह उभरा। अब हर कोई एक सेल फोन रखता है
और हर वायरलेस हैंडसेट रेडियो आवृत्तियों (आरएफ) के एक निश्चित स्तर को उत्सर्जित करता है। इन स्तरों को एसएआर स्तर, या विशिष्ट अवशोषण दर द्वारा स्वास्थ्य उद्देश्यों के लिए आगे वर्गीकृत किया जाता है।
———————————————————-
अब हम रेडियो तरंगों के कुछ स्वास्थ्य विवादों के बारे में बात करते हैं।
आरएफ ऊर्जा द्वारा ऊतक के गरमी से होने वाले जैविक प्रभाव को अक्सर “थर्मल” प्रभाव के रूप में जाना जाता है।
यह कई सालों से ज्ञात है कि आरएफ विकिरण के बहुत उच्च स्तर के संपर्क में तेजी से जैविक ऊतक को गर्म करने के लिए आरएफ ऊर्जा की क्षमता के कारण हानिकारक हो सकता है। यह सिद्धांत है जिसके द्वारा माइक्रोवेव ओवन खाना पकाते हैं।
मनुष्यों में ऊतक क्षति उच्च आरएफ स्तरों के संपर्क में हो सकती है क्योंकि उत्पन्न होने वाली अत्यधिक गर्मी का सामना करने या समाप्त करने में शरीर असमर्थ हो सकता है।
शरीर के दो भाग, आंख और अंडकोश अत्यधिक ताप को सहन करने में असमर्थ हैं, क्यूँकि इन जगहों में रक्त प्रवाह काम है और इसलिए अत्यधिक गरमी से यह लड़ने की क्षमता नहीं रखते। RADIO WAVES FREQUENCY
काम स्तर की रेडीओ तरंगों की हानिकारक जैविक प्रभावों के सबूत संदिग्ध और अप्रमाणित हैं।
आम तौर पर यह माना जाता है कि मानव स्वास्थ्य के प्रभाव और उनकी प्रासंगिक प्रासंगिकता, यदि कोई हो, निर्धारित करने के लिए और अनुसंधान की आवश्यकता है।
आम तौर पर, अध्ययनों से पता चला है कि आम जनता द्वारा नियमित रूप से सामना की जाने वाली आरएफ ऊर्जा के पर्यावरणीय स्तर आमतौर पर महत्वपूर्ण हीटिंग और शरीर के तापमान में वृद्धि के लिए आवश्यक स्तर से नीचे होते हैं।
हालांकि, कार्यस्थल वातावरण जो उच्च स्थित आरएफ स्रोतों के पास होते हैं जहां आरएफ ऊर्जा के लिए मनुष्यों के सुरक्षित संपर्क के लिए अनुशंसित सीमा पार हो सकती है।
ऐसे मामलों में, सुरक्षित सुनिश्चित करने के लिए प्रतिबंधित उपाय या कार्यवाही आवश्यक हो सकती है।
कुछ अध्ययनों ने आरएफ और माइक्रोवेव एक्सपोजर और कैंसर के बीच एक सम्बंध होने की संभावना की भी जांच की है। आज तक के परिणाम अनिश्चित हैं।
हालांकि कुछ प्रयोगात्मक डेटा ने कुछ विशिष्ट स्थितियों के तहत उजागर जानवरों में एक्सपोजर और ट्यूमर गठन के बीच एक संभावित सम्बंध बताया है, लेकिन परिणामों को स्वतंत्र रूप से दोहराया नहीं गया है।
वास्तव में, अन्य अध्ययन कैंसर या किसी भी संबंधित स्थिति के कारण लिंक के लिए साक्ष्य खोजने में विफल रहे हैं। RADIO WAVES FREQUENCY
इसके अलावा आरएफ के एक्सपोजर (exposure) को अनाधिकृत रूप से नींद विकार, सिरदर्द, और अन्य तंत्रिका संबंधी समस्याओं से जोड़ा गया है।
दावा है कि “रेडियो तरंग बीमारी” को बढ़ावा देने वाले सेल फोन वर्षों से समाज के माध्यम से प्रचारित हुए हैं। एसोसिएटेड बीमारियों में एकाधिक स्क्लेरोसिस, अवसाद, ऑटिज़्म, और कई अन्य आम बीमारियां शामिल हैं।——————————————————
मैं आपका ध्यानसुप्रीम कोर्ट के एक अहम फ़ैसले पर केंद्रित करना चाहती हूँ।
सुप्रीम कोर्ट ने हाल ही में मोबाइल टावर को निष्क्रिय करने का आदेश दिया था जब एक व्यक्ति ने अपने कैंसर से पीड़ित होने के ज़िम्मेदार एक मोबाइल टावर को ठहराया था। RADIO WAVES FREQUENCY
एक ऐतिहासिक निर्णय में, सुप्रीम कोर्ट ने हाल ही में एक ऐसे व्यक्ति के पक्ष में आदेश दिया जिसने कहा कि मोबाइल टावर से विकिरण ने उनके स्वास्थ्य को प्रभावित किया था।
टीओआई में धनंजय महापात्रा की रिपोर्ट के मुताबिक, हरीश चंद्र तिवारी में हॉजकिन के लिम्फोमा, एक प्रकार का कैंसर है, और उन्होंने दावा किया कि उनके कार्यस्थल के पास एक मोबाइल टावर से हानिकारक विकिरण ने उन्हें प्रभावित किया।
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