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carbon ar�d nitrogen axides�s,z9-�1 ����
<br /> .
<br /> contribute to ad�rerse cardiovascular
<br /> effects.�1�24,3� Elevated levels of black
<br /> carbo��a carcinogen}nave been re�arted
<br /> near airports�l.
<br /> 1.31mpacts of H�inscom aviation activi#y ������
<br /> ������ ,��
<br /> an neigh�oring communities
<br /> �
<br /> Because � single jet can have a dramatic
<br /> A�.
<br /> irnpact on both ultrafEne particle {UfP} °� �
<br /> and nitrogen di+oxide {�10�}
<br /> concentrations near airports (e.g.j Figu�e
<br /> 4; nate: this data was co�lected at a sma�l
<br /> regionai airport in New En�land}, it �s
<br /> important to cansider nea�r-airp��
<br /> im�acts of these p�l�utants. fn a ��evic��as
<br /> expforatory run, we measured elevated
<br /> levels of U�P downwirtd af H��s�om �igure 3: �easurements of ultra �irr�
<br /> Figut�e 3}. Due to the plartned Nor'th�ie�d , a►rticfes r`r�dica�e elevat�ed rancentration
<br /> � .
<br /> ex ansion at Hanscom, ��1d t#1e � ��e��'s�'erly/downw�Rd s�de of Nans�o�
<br /> p �ield Qn October.�.1,2023.
<br /> antic�pated increase in �et activ�ty, �� is
<br /> prudent to develop a better .r;:�9r�..................,� � v ���:�� ........ .�...�. .�n .�� y����� __. ....�_w....�.�.�3
<br /> ��� .�� 4 �
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<br /> ���.OHCIfAtilfON� �.r C�f�f1M4t� ��y.�,,�+60fl04M10'�Ofl y�
<br /> ' �„��,��j�� � �; •. ....,.
<br /> ..�.........
<br /> understanding of the current �.� : �� ���� '`': . :�-_ . � �- /y������a.�� �,
<br /> � W�
<br /> �.,�.�,�, ; ��°°� :�
<br /> �.� Q��j7f! , 1ti t{ { ....,.ww�.������rv�.....:.+.�«.••+� �.
<br /> ' Hans�om's .. ...... ._.... � �� $ � �y�
<br /> impacts frorr� �. : :� ,. �: � x. :« � ; ;:
<br /> . . • • � . �� �� 's�.,° �£"` � � • , �
<br /> av�at�on act��r�ty o ��` :
<br /> � ��� ..';#3 : �:�{ � ?g::;r��� � f :�'3
<br /> . �' �:� �•, ��p( �" t { ~�
<br /> nei hborin cammun�ties air } `$Q� ` .
<br /> � fi t� '������1 S .. ...a �OC� �� K f ; ,�
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<br /> � �� �a�� ���.�� 0:�µ � �6. 1 �,��� t ' �iC)
<br /> �uafity. There are compell�ng : {f � ��. � ( ��. ... � -£ � .M�.�w_... w �3
<br /> : � M� .d. � _. �::�.......�..V..V..� �
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<br /> � .'fi.v.�... 10!.'4 : i. •{i ��` . �k .
<br /> • ��1�HiL 7VM 1• ...��� iR�W fiVAi��dC fA�Wwi�i/��ii� 'iR�iV �.�G VYN� �� ,
<br /> reasons for th�s: .��s.� ���� ����•�
<br /> ��} To fill the knowledge gap•
<br /> .
<br /> urrent� li�tie is kn�wn about �:.:..:�$.....���..�..r......,.....�_.�:;:�::...��.::�:;.�;»�;�� g�.��.� � .�.�..�..:� �w:�.£�� . .:f�
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<br /> Y� arrc�sso�� .� �`��,�����0°"�"�°�'., ��.����ot+c ca�we�:��
<br /> : .�...,,,..,.. � ,2� � �.. , �� <�
<br /> ND? �°� :<
<br /> ;i.�: �
<br /> ' of Hanscom's �. ��__.._� $ _ ��..._�_. �- � .� i.
<br /> the �mpacts .� :: ��ec'�.. ���
<br /> �V 4 , � y�. Y � s
<br /> ` at 2 .J
<br /> aviation activity on air quality in � 4 ' � ::yt '��� `�
<br /> �} � �
<br /> ��; �_ .�...� {�
<br /> . � $`. � � ::.,�r� : � ` :
<br /> surrounding towns,and � � �.�:��.s
<br /> �
<br /> � � � �^ �
<br /> ; �� �,: � �3., �:��.A
<br /> �' `� ; �`"4.i: �., � a� i t�
<br /> � n` : k E).d
<br /> � �Q� ' : � ;n� •. ••� , . :
<br /> �2} To respond to the draft �� �.. �`�
<br /> ,'V a,' , � @� >°�,.s�:y :L
<br /> M�6�� ��� ,
<br /> � "� �,�a a ... ,.v�,a...J' $�^ ^K, a . ,,,,,,,�w ,!'' <
<br /> ,,
<br /> ;���,��a•�7 .,.i::,.:����. .� £:�r....�..... ...�.......:..............:.....:..................,.,..� ��M,...... ,...,,m...,.,,,....... _�,�
<br /> .,.,�.°�� . ........�,,......._..
<br /> E!R of the North Field expansion . �a �s:�a ts:�e �a:�s ta�o �za s�z ��5am ��.�so:�o ���.00 ��:a�:3o �s:s��a
<br /> .lr,n t 4.2�23 Juss OT.2Q23 .lun 14.Z�QZ3
<br /> pra�ect from a sound, scientific Fjg��� 4: Measuremer�ts af u�tra fine particfes �xnd oxides of nitrogen
<br /> basis using recently callected data clearly show that srn�le�e�takeo�ar�d lar�d�ng event�s can crea�e up to an
<br /> and understanding of current and order o�magn�tude in�retrse in cc�r�centrations. This da�a was coflected at
<br /> anti�i at��im acts. a small r�gion�!�rirp+�rt irt�ew Er�gla�►cl much like NanscQm Field.
<br /> p p
<br /> �3} l.astiy, to raise accurate data-dri�en awareness of the pote�t�al impacts of jet activity on local
<br /> environm�ntal conditions which are of inter�st t� r�eighboren� cammunities and h�ve patential
<br /> health implications but are not alwa�s decl�re�in environmer�tal r�vie�+�r processes.
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